Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
trung cam » trung tam, trung nam, trung ca
trung cap » truong cao, trung tam
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban

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 - hanh ((trung cam) or (trung cap)) nhung ((cong dan) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh ((trung cam) OR (trung cap)) nhung ((cong dan) OR (cong tan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh ((trung cam) or (trung cap)) nhung ((cong dan) or (cong tan)) toan ban*.