Perhaps you should try some spelling variations:
mot chieu » doi chieu, ho chieu
hanh mang » nhanh mang, hanh trang, nhanh lang
cua trong » cua truong, cua trung, qua trong
doc hieu » toc thieu, hoc thieu, hoc hien
theo chu » theo chieu, cho chu, chao chu
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
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: ((((mot chieu) or (doc hieu))) or (theo chu)) tinh - hanh mang cua trong cong tan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((mot chieu) OR (doc hieu))) OR (theo chu)) tinh - hanh mang cua trong cong tan than cao.
• Adding a wildcard symbol may retrieve word variants: ((((mot chieu) or (doc hieu))) or (theo chu)) tinh - hanh mang cua trong cong tan than cao*.