Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
thanh tung » thanh cong
qua trong » quan trong, qua trinh, qua song
ho chieu » hoc thieu, doi chieu, mot chieu
tung qua » dung qua, tuong quan, trung quan
cong san » cong tac
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac
doi chi » doi khi

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 (((theo chieu) or (doi chi)))) sach - thanh tung qua trong cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((theo chieu) OR (doi chi)))) sach - thanh tung qua trong cong san than cap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((theo chieu) or (doi chi)))) sach - thanh tung qua trong cong san than cap*.