Perhaps you should try some spelling variations:
khung cua » chung cua, khung luan, chung cu
dung cong » dung trong
ho trieu » mot trieu, 25 trieu, 30 trieu
khan cua » nhan cua, than cua, han cua
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho trieu tinh - hanh ((khung cua) or (khan cua)) dung cong tac than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho trieu tinh - hanh ((khung cua) OR (khan cua)) dung cong tac than cao.
• Adding a wildcard symbol may retrieve word variants: ho trieu tinh - hanh ((khung cua) or (khan cua)) dung cong tac than cao*.