Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
dung cong » dung trong
san thinh » van thinh, tan thinh, san thanh
sinh dat » sinh vat, dinh dat, sinh dai
dat dung » dan dung, vat dung, da dung
cong san » cong tac
thinh ca » tinh ca, chinh ca, thanh ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc thieu) or (doi chieu)) tinh - nhan sinh dat dung cong san thinh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (doi chieu)) tinh - nhan sinh dat dung cong san thinh ca.
• Adding a wildcard symbol may retrieve word variants: ((toc thieu) or (doi chieu)) tinh - nhan sinh dat dung cong san thinh ca*.