Perhaps you should try some spelling variations:
nhung chong » nhung cong, nhung phong, nhung phuong
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung hong » nhung huong, nhung phong, nhung cong
canh tran » canh tranh, hanh trang, banh trang
tran van » luan van
tuan cau » toan cau, quan cau, thuan cam
tuan cu » tuan tu, quan cua, tuan thu

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: theo chieu tinh - canh tran van ((nhung hong) OR (nhung chong)) hanh ((tuan cau) OR (tuan cu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu tinh - canh tran van ((nhung hong) OR (nhung chong)) hanh ((tuan cau) or (tuan cu))~".
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - canh tran van ((nhung hong) OR (nhung chong)) hanh ((tuan cau) or (tuan cu))*.