Perhaps you should try some spelling variations:
hanh dung » thanh dung, anh dung, hanh dong
phan cong » thanh cong
cong phap » chong phap, cong phan, cong pham
phap phat » phap luat
doc hieu » hoc thieu, hoc hien
dung van » duong van, dung va, dang van
van phan » van phong, van thanh, luan phan
phat lap » phan lap, phap lap, phat lam

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)) sang - hanh dung van phan cong phap phat lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (toc thieu)) sang - hanh dung van phan cong phap phat lap".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (toc thieu)) sang - hanh dung van phan cong phap phat lap*.