Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh mang » nhanh mang, hanh trang, nhanh lang
nang cong » nang song, dang cong, bang cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban
mang xa » lang xa, mang may, dang xay
xa nang » da nang, va nang, xa nong

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((thuc hanh) or (chieu sang)) - hanh mang xa nang cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((thuc hanh) OR (chieu sang)) - hanh mang xa nang cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((thuc hanh) or (chieu sang)) - hanh mang xa nang cong dan toan ban*.