Perhaps you should try some spelling variations:
thanh hang » thanh hoang, thanh thang, tranh hang
nhung cong » dung cong, thong cong, hang cong
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh hang » hang hang, hanh han, hanh mang
tran hong » tran hoang, tran trong, tranh hang
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - ((hanh hang) or (((thanh hang) or (tran hong)))) cua nhung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - ((hanh hang) OR (((thanh hang) OR (tran hong)))) cua nhung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - ((hanh hang) or (((thanh hang) or (tran hong)))) cua nhung cong tac toan cao*.