Perhaps you should try some spelling variations:
quan thanh » ban thanh, van thanh
thanh dung » thanh duong, thanh tung, thanh hung
tinh quan » tinh quang, trinh quan, tin quan
trong dan » trong dang, trong san, trong tan
ho chieu » theo chieu, hoc thieu, doi chieu
dan tran » dang tran, tan tran, dan than
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: ((ho chieu) or (mot chieu)) sang - tinh quan thanh dung trong dan tran van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (mot chieu)) sang - tinh quan thanh dung trong dan tran van.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (mot chieu)) sang - tinh quan thanh dung trong dan tran van*.