Perhaps you should try some spelling variations:
"h. test direct investment treaties" » "h. test direct investment strategies", "h. test direct investment activities", "h. test direct investment incentives", "h. des direct investment treaties", "h. protest direct investment treaties"
"h. test unit investment ties" » "h. test net investment ties", "h. test debt investment ties", "h. test best investment ties", "h. test unit investment series", "h. test unit investment trends", "h. test unit investment trust", "h. test audit investment ties", "h. debt unit investment ties", "h. test und investment ties"

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