Perhaps you should try some spelling variations:
huong manh » duong manh, luong manh, phuong danh
chau tinh » cuu tinh, cua tinh, cac tinh
hanh luan » khanh luan, hang luan, hanh luat
van duong » van dong, van dung, van phong
hung manh » nhung manh, hung anh, tung manh
toan cao » toan ban, toan tap
ha tinh » va tinh, may tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chau tinh) or (ha tinh)) - hanh luan van duong ((huong manh) OR (hung manh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chau tinh) OR (ha tinh)) - hanh luan van duong ((huong manh) OR (hung manh)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chau tinh) or (ha tinh)) - hanh luan van duong ((huong manh) OR (hung manh)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chau tinh) or (ha tinh)) - hanh luan van duong ((huong manh) OR (hung manh)) toan cao*.