Perhaps you should try some spelling variations:
hanh tran » hanh trang, thanh tran, hanh tram
trong dan » trong dang, trong san, trong tan
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
van dung » van dong, xay dung, tin dung
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
doi chi » doi khi

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 (doi chi)) sach - hanh tran van dung trong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chi)) sach - hanh tran van dung trong dan than cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chi)) sach - hanh tran van dung trong dan than cau*.