Perhaps you should try some spelling variations:
theo lieu » theo tieu, theo chieu, theo yeu
lieu tinh » trieu tinh, diep tinh, bien tinh
khung cua » chung cua, khung luan, chung cu
dung cong » dung trong
khan cua » nhan cua, than cua, han cua
cong tac » cong ty
than cao » toan cao, than cap, than sao
thai cao » tai cao, thoai cac, thuat cao

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

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