Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
chong tham » chong phap, cong thai, hong thai
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
hong tham » hong thai, hoang thai, luong tham
san chang » ban hang, dan chan, van khang
chang cau » hang cau, nhung cau, hang ca
cong san » cong tac

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 ((chong tham) OR (hong tham)) thong cong san chang cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - thanh ((chong tham) OR (hong tham)) thong cong san chang cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh ((chong tham) OR (hong tham)) thong cong san chang cau*.