Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh tranh » hanh trinh, hanh trang, lanh tranh
dung cong » dung trong
thanh lap » thanh san, phan lap, thanh van
thanh hai » thanh phan, thanh hoa, thanh san
cong tan » cong tac, cong san, cong thanh
ap dung » xay dung, van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu sach - ((hanh tranh) or (canh tranh)) ap dung cong tan ((thanh lap) OR (thanh hai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sach - ((hanh tranh) OR (canh tranh)) ap dung cong tan ((thanh lap) OR (thanh hai))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu sach - ((hanh tranh) or (canh tranh)) ap dung cong tan ((thanh lap) OR (thanh hai))*".