Perhaps you should try some spelling variations:
theo dieu » theo tieu, theo chieu, thuoc dieu
bang cong » dang cong, bang song, hang cong
tram van » tran van, trang van, tranh van
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
tam van » nam van, dam van, tom van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dieu hanh - hanh ((tram van) or (tam van)) bang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dieu hanh - hanh ((tram van) OR (tam van)) bang cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo dieu hanh - hanh ((tram van) or (tam van)) bang cong dan toan cau*.