Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
ban huong » bang phuong, ban hang, anh huong
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
luan ban » luan van, luan san, luan han
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu tinh - canh tranh luan ban huong ((van toan) or (van tuan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - canh tranh luan ban huong ((van toan) OR (van tuan)) tap.
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - canh tranh luan ban huong ((van toan) or (van tuan)) tap*.