Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, manh truong
truong cao » truong dai
nhung cong » dung cong, thong cong, hang cong
cao nhung » cho nhung, cam nhung, cao chung
doc hieu » toc thieu, hoc thieu, hoc hien
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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: ((doc hieu) or (ho chieu)) xanh - hanh truong cao nhung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (ho chieu)) xanh - hanh truong cao nhung cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (ho chieu)) xanh - hanh truong cao nhung cong tan toan cao*.