Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
cap nhung » cam nhung, vap nhung, dap nhung
tung cap » trung cap, cung cap, thong cap
cong tan » cong tac, cong san, cong thanh
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - thanh tung cap nhung ((cong tan) or (huong dan)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh tung cap nhung ((cong tan) OR (huong dan)) than cap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh tung cap nhung ((cong tan) or (huong dan)) than cap*.