Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thang cua » thong cua, hang cua, tang cua
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
than cua » nhan cua, thai cua, ban cua
khan cua » nhan cua, han cua, khien cua
cong tac » cong ty
tac thai » toc thai, rac thai, sac thai
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: ho chieu tinh - hanh ((((thang cua) OR (than cua))) or (khan cua)) dung cong tac thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - hanh ((((thang cua) OR (than cua))) OR (khan cua)) dung cong tac thai cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - hanh ((((thang cua) OR (than cua))) or (khan cua)) dung cong tac thai cao*".