Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trung » thanh trung, hanh trang, manh trung
hieu cach » hieu cac, chieu sach, hieu ca
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
van thanh » ban thanh, van tuan
hoc hieu » hoc thieu, hoc hien, doc hieu
dan than » ban than, van than, dan toan
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu cach - hanh trung cua nhung cong ((((dan than) or (dan chan))) or (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cach - hanh trung cua nhung cong ((((dan than) OR (dan chan))) OR (van thanh)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - hanh trung cua nhung cong ((((dan than) or (dan chan))) or (van thanh)) cau*.