Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dung cong » dung trong
tap quan » tac quan, hai quan
quan tap » quan tai, quan lap, quan tam

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 tranh cua ((trong cong) or (((dung cong) or (dang cong)))) tap quan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh tranh cua ((trong cong) OR (((dung cong) OR (dang cong)))) tap quan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh tranh cua ((trong cong) or (((dung cong) or (dang cong)))) tap quan tap*.