Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
dung cong » dung trong
khang cu » khung cua, thang cua, chung cu
khan cua » nhan cua, than cua, han cua
cong tac » cong ty
tac thai » toc thai, rac thai, sac thai
thai cao » tai cao, thoai cac, thuat cao
ho lieu » so lieu, co lieu, ho kieu

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

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