Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
dung cong » dung trong
ho chieu » hoc thieu, doi chieu, mot chieu
tranh va » tranh van, trang va, trinh va
cong van » cong vang, cong san, song van
va dung » van dung, va duong, vat dung
van tai » von tai, van tuan
tai tap » bai tap, tai tao, hai tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (theo chieu)) sach - canh tranh va dung cong van tai tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sach - canh tranh va dung cong van tai tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) sach - canh tranh va dung cong van tai tap*.