Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
trung tuan » trung thanh, trung tam, tran tuan
tranh hang » trinh han, tran hoang, tran hong
hieu xanh » hieu manh, hieu nganh, dieu hanh
tuan dung » tuan duong, tran dung, tan dung
trong san » trong cac, cong san, dong san
tran van » luan van

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) OR (chieu xanh)) - thanh trung tuan dung trong san ((tran van) or (tranh hang))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (chieu xanh)) - thanh trung tuan dung trong san ((tran van) OR (tranh hang)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((hieu xanh) OR (chieu xanh)) - thanh trung tuan dung trong san ((tran van) or (tranh hang))".
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) OR (chieu xanh)) - thanh trung tuan dung trong san ((tran van) or (tranh hang))*.