Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo phap » thi phap
phap tinh » phap sinh, phap tieng, phap tang
luan tang » luan nang, lan tang, xuan trang
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo phap tinh - hanh trinh ((luan tang) or (luan van)) cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap tinh - hanh trinh ((luan tang) OR (luan van)) cong san than cau.
• Adding a wildcard symbol may retrieve word variants: theo phap tinh - hanh trinh ((luan tang) or (luan van)) cong san than cau*.