Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tang » hanh trang, anh tang, hanh tung
hanh mang » nhanh mang, hanh trang, nhanh lang
quan dung » quang dung, quan duong, qua dung
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong ty
toan cao » toan ban, toan tap

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 tang) OR (hanh mang)) quan dung ((cong thanh) or (cong tan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - ((hanh tang) OR (hanh mang)) quan dung ((cong thanh) OR (cong tan)) toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - ((hanh tang) OR (hanh mang)) quan dung ((cong thanh) or (cong tan)) toan cao*".