Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
hanh dung » thanh dung, anh dung, hanh dong
cua thong » cua thuong, cua khong, cua tong
trinh van » trinh han, trinh quan, trinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
anh tang » anh bang, anh dang, anh sang
anh nang » ganh nang, anh bang, anh dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - ((hanh dung) or (((anh tang) or (anh nang)))) cua thong cong trinh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((hanh dung) OR (((anh tang) OR (anh nang)))) cua thong cong trinh van ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((hanh dung) or (((anh tang) or (anh nang)))) cua thong cong trinh van ban*.