Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, hanh mang, nhanh quang
nhung cong » dung cong, thong cong, hang cong
nhan dang » nhan dan, phan dang, tran dang
cua nhung » va nhung
cong tac » cong ty
toan cao » toan ban
toan tap » toan ban
chao ha » khao ha, cao ha, chai ha
ha tinh » va tinh, may tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ha tinh - ((nhanh mang) or (nhan dang)) cua nhung cong tac ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ha tinh - ((nhanh mang) OR (nhan dang)) cua nhung cong tac ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: chao ha tinh - ((nhanh mang) or (nhan dang)) cua nhung cong tac ((toan cao) or (toan tap))*.