Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, doi chieu, mot chieu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) sach - hanh ((trung tuan) or (ban cua)) bang cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - hanh ((trung tuan) OR (ban cua)) bang cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - hanh ((trung tuan) or (ban cua)) bang cong tan toan ban*.