Perhaps you should try some spelling variations:
chiet tach » chieu sach
nhiet nang » nhiet dong, viet nang, nhieu tang
trong manh » trong minh, trong anh, trong mach
hanh tang » hanh trang, anh tang, hanh mang
manh toan » thanh toan, anh tuan, tinh toan
hieu van » hieu va, thien van, lieu va
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
toan cao » toan ban, toan 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 ((((nhiet nang) or (hieu van))) or (chiet tach)) - hanh tang cua dung trong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((nhiet nang) OR (hieu van))) OR (chiet tach)) - hanh tang cua dung trong manh toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((((nhiet nang) or (hieu van))) or (chiet tach)) - hanh tang cua dung trong manh toan cao*.