Perhaps you should try some spelling variations:
investment strategy » investment rate, investment rates, development strategy
trade adjustment » price adjustment, price adjustments
adjustment ties » adjustment taxes, adjustment costs, adjustment loans
dense foreign » dense forest, does foreign, dense forests
kent trade » net trade, west trade, latent trade

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( h. dense foreign investment strategy ) OR ( h. kent trade adjustment ties ))~.
• Adding a wildcard symbol may retrieve word variants: (( h. dense foreign investment strategy ) or ( h. kent trade adjustment ties ))*.