Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
hanh dung » thanh dung, anh dung, hanh dong
dung data » dung dat, dung dan, dung danh
data phan » dam phan, sat phan, vat phan
phan cong » thanh cong
cong khan » cong khanh, cong nhan, cong phan
khan phap » han phap, phan phap, khanh pham
phap lap » phan lap, phap lam, phap luat

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