Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, hanh mang, nhanh quang
chieu sang » chieu sach, chieu xanh, hieu lang
tong cong » trong cong, cong cong, dung cong
cong doan » cong dan, cong hoan, dong doanh
anh tang » anh bang, anh dang, anh nang
cua tong » cua cong, cua dong, cua nong
doan van » doan va, hoang van, luan van

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) or (diep tinh)) - ((anh tang) or (nhanh mang)) cua tong cong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (diep tinh)) - ((anh tang) OR (nhanh mang)) cua tong cong doan van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (diep tinh)) - ((anh tang) or (nhanh mang)) cua tong cong doan van ban*.