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
trong tan » trong quan, trong cac, cong tan
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang
trong ca » trong cac, trong nha
toan ban » van ban

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 dung) OR (cua dong)) ((trong tan) or (trong ca)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh tranh ((cua dung) OR (cua dong)) ((trong tan) OR (trong ca)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh tranh ((cua dung) OR (cua dong)) ((trong tan) or (trong ca)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh tranh ((cua dung) OR (cua dong)) ((trong tan) or (trong ca)) toan ban*.