Perhaps you should try some spelling variations:
thanh hang » thanh hoang, thanh thang, tranh hang
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
hang cong » dang cong, hang nong, bang cong
thanh ta » thanh tra, thanh tai, thanh tay
ta thanh » tai thanh, va thanh, ha thanh
cong san » cong tac
toan cau » toan tap, toan tai
toan cao » toan tap
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - thanh ta thanh hang cong san ((((toan cau) or (toan cao))) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - thanh ta thanh hang cong san ((((toan cau) OR (toan cao))) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo hieu lang - thanh ta thanh hang cong san ((((toan cau) or (toan cao))) or (toan ban))*.