Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
tac tran » tan tran, tac trai, tac tren
rac thai » sac thai, toc thai, bac thay

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 - canh tranh cua dung cong ((tac tran) or (rac thai)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh cua dung cong ((tac tran) OR (rac thai)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh cua dung cong ((tac tran) or (rac thai)) ban*.