Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
ban thanh » ban hang
cua triet » cua viet, su triet, va triet
sach thi » sach thu, sach tai, sach thieu
thi cong » tai cong, thien cong
hieu cao » chieu cao, hieu cac, hieu ca
chat tuc » chat xuc, luat tuc, chat huu
ban hanh » ban hang
cong xa » cong xay, cong xua, cong ha
tai cua » thai cua, tai cuc, tri cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach thi cong xa hoi. hieu cao chat tuc ((ban thanh) or (ban hanh)) tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach thi cong xa hoi. hieu cao chat tuc ((ban thanh) OR (ban hanh)) tai cua triet.
• Adding a wildcard symbol may retrieve word variants: thuoc sach thi cong xa hoi. hieu cao chat tuc ((ban thanh) or (ban hanh)) tai cua triet*.