Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
mot chieu » ho chieu
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
cong cu » chung cu
cu dung » su dung, cau duong, duc dung

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 (doi chieu))) or (theo chieu)) xanh - thanh cong cu dung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((mot chieu) OR (doi chieu))) OR (theo chieu)) xanh - thanh cong cu dung cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((((mot chieu) or (doi chieu))) or (theo chieu)) xanh - thanh cong cu dung cong tan toan cao*.