Perhaps you should try some spelling variations:
cong phap » chong phap, cong phan, cong pham
phap phan » phap phat, phap hoan, phap luan
phan dang » phan dau, phan cong, nhan dan
doc hieu » hoc thieu, hoc hien
dang van » hoang van, hang va
van chat » cao chat
chat cap » chat cam, chat cao, cao cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (toc thieu)) cach - thanh cong phap phan dang van chat cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) cach - thanh cong phap phan dang van chat cap*.