Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
trong van » trong cac
ho chieu » hoc thieu, doi chieu, mot chieu
thai cao » tai cao, thoai cac, thuat cao

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 cua nhung ((cong vang) or (trong van)) thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - canh tranh cua nhung ((cong vang) OR (trong van)) thai cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) sach - canh tranh cua nhung ((cong vang) or (trong van)) thai cao*".