Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
hanh tang » hanh trang, anh tang, hanh mang
chu manh » ho manh, chu han, chu van
cong van » cong vang, cong san, song van
tang va » trang va, tang van, thang va
van tan » van tuan, van ban, van tai
tan cao » toan cao, tao cao, tay cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((((chuc nang) or (chu manh))) or (chieu sach)) - hanh tang va nhung cong van tan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chuc nang) OR (chu manh))) OR (chieu sach)) - hanh tang va nhung cong van tan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((((chuc nang) or (chu manh))) or (chieu sach)) - hanh tang va nhung cong van tan cao*.