Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hang cong » dang cong, hang nong, bang cong
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
tran van » luan van
van hang » van khang, van hoang, van thang
cong san » cong tac
than ban » thanh ban, toan ban, than man
than ma » than man, than va, khan ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - thanh tran van hang cong san ((than ban) or (than ma))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - thanh tran van hang cong san ((than ban) OR (than ma)).
• Adding a wildcard symbol may retrieve word variants: theo chu sach - thanh tran van hang cong san ((than ban) or (than ma))*.