Perhaps you should try some spelling variations:
chiet tach » chieu sach
hieu lang » chieu sang, hieu quang, nhieu tang
nang cong » nang song, dang cong, bang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
hanh han » hanh nhan, hanh phan, hanh san
toan cau » toan cao, toan ban, toan tap
va nang » van nang, da nang, cam nang
han va » hang va, hanh va, nhan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chiet tach) or (hieu lang)) - hanh han va nang cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chiet tach) OR (hieu lang)) - hanh han va nang cong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) or (hieu lang)) - hanh han va nang cong manh toan cau*.