Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
cong tacg » cong tang, cong thang, cong tan
hanh han » hanh nhan, hanh phan, hanh san
han luan » hang luan, nhan luan, dan luan
luan ung » luan hung, luon ung, luan chung
cong tac » cong ty
tan cau » toan cau, van cau, tan ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - hanh han luan ung ((cong tac) or (cong tacg)) tan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh han luan ung ((cong tac) OR (cong tacg)) tan cau*.