Perhaps you should try some spelling variations:
tieng trung » truong trung
doi chieu » doc hieu, doi chi, mot chieu
phan cong » thanh cong
thang cap » thong cap, than cap, trung cap
ta tieng » tap tieng, tu tieng, va tieng
trung va » truong va, trang va, trung ha
va thang » van thang, va thanh, va thong
cong ta » cong tac, cong tan, cong tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (toc thieu)) sach - phan cong ta tieng trung va thang cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sach - phan cong ta tieng trung va thang cap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) sach - phan cong ta tieng trung va thang cap*.