Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
mot chieu » doi chieu
tuan dung » tuan duong, tran dung, tan dung
dung cong » dung trong
cong luan » tong luan, cong tuan, dong luan
ho chieu » theo chieu, doi chieu, thi chieu

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (((mot chieu) OR (ho chieu)))) xanh - thanh trung tuan dung cong luan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (((mot chieu) OR (ho chieu)))) xanh - thanh trung tuan dung cong luan van ban~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (((mot chieu) OR (ho chieu)))) xanh - thanh trung tuan dung cong luan van ban*.