Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
theo chieu » theo tieu, ho chieu, thi chieu
nhung cong » dung cong, thong cong, nhung don
hang cong » dang cong, hang nong, bang cong
theo chu » cho chu, chao chu, theo yeu
tranh va » tranh van, trang va, trinh va
chat tai » chat thai, cao tai, khau tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (theo chu)) sach - hanh tranh va ((nhung cong) or (hang cong)) cao chat tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) sach - hanh tranh va ((nhung cong) OR (hang cong)) cao chat tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (theo chu)) sach - hanh tranh va ((nhung cong) or (hang cong)) cao chat tai".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (theo chu)) sach - hanh tranh va ((nhung cong) or (hang cong)) cao chat tai*.