Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hoc thieu » toc thieu, hoc hien
hanh dang » hanh dong, hanh dung, hanh mang
luan phan » luan van, luan hoan
phan cong » thanh cong
anh dang » anh dong, anh dung, anh bang
cong san » cong tac
san chan » san chang, dan chan, san chay
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (hoc thieu)) sang - ((hanh dang) or (anh dang)) luan phan cong san chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (hoc thieu)) sang - ((hanh dang) OR (anh dang)) luan phan cong san chan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (hoc thieu)) sang - ((hanh dang) or (anh dang)) luan phan cong san chan cau*.