Perhaps you should try some spelling variations:
canh trang » canh tranh, banh trang, thanh trang
hanh trang » thanh trung, canh tranh, hanh trinh
khau sach » hau sach, khoa sach, pham sach
rau sach » cau sach, hau sach, nam sach
song dan » song danh, song van, cong dan
dan tran » dang tran, tan tran, dan than
tran cao » toan cao, tran chau, trang cho
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((rau sach) or (khau sach)) - ((canh trang) OR (hanh trang)) va nang song dan tran cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((rau sach) OR (khau sach)) - ((canh trang) OR (hanh trang)) va nang song dan tran cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((rau sach) or (khau sach)) - ((canh trang) OR (hanh trang)) va nang song dan tran cao".
• Adding a wildcard symbol may retrieve word variants: theo ((rau sach) or (khau sach)) - ((canh trang) OR (hanh trang)) va nang song dan tran cao*.