Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
tranh cua » doanh cua, manh cua
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
cua dung » cua dang, cua dong, qua dung
thai tap » thai tai, hai tap, thai tran
thai tay » thai tai, thanh tay, thai thuy

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 - canh tranh cua dung cong ((thai tap) OR (thai tay)) cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - canh tranh cua dung cong ((thai tap) OR (thai tay)) cac".
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - canh tranh cua dung cong ((thai tap) OR (thai tay)) cac*.