My plants have no or hardly any odor while growing and only a small amount at best after drying/curing. In colder months I even grow indoors with no exhausting or filtering of tent air, with no odor accumulating in the house. I've never been able to figure out the cause. Luckily every other aspect of quality - potency, yield, looks. - is rather good, so I don't worry about it, don't consider not having loud smells as a problem. I presume even with what growers complain about as low terps there is still enough variety and amounts of whatever terpenes is/are needed for the concierge effect.
For those looking to directly boost (some might say adulterate?) terpene content and odor, a number of companies sell pure terpenes and mixtures emulating the odor/taste of popular strains. Although made mostly as additives for concentrates, I presume there are suitable ways of applying these oils to buds.