Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
hanh dung » thanh dung, anh dung, hanh dong
dang cong » dung cong
cong nhat » cong nhan, cong ha, cong suat
nhat hanh » nhat ban, nhat minh
dung van » duong van, dung va, dang van
van dang » van dong, van dung, van nang
hanh lap » thanh lap, hanh lam, hanh cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) OR (toc thieu)) sang - hanh dung van dang cong nhat hanh lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (toc thieu)) sang - hanh dung van dang cong nhat hanh lap".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (toc thieu)) sang - hanh dung van dang cong nhat hanh lap*.