Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
cam luan » ham luan, pham luan, bai luan
van hanh » van thanh, ban hanh, van anh
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va
hanh le » thanh le, hanh ve, hanh de
lanh y » anh y, hanh y, lanh lay
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh y ((nang xa) or (lang xa)) hoi. ((hieu ve) or (hieu van)) cam luan van hanh le cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh y ((nang xa) OR (lang xa)) hoi. ((hieu ve) OR (hieu van)) cam luan van hanh le cua triet.
• Adding a wildcard symbol may retrieve word variants: thuat lanh y ((nang xa) or (lang xa)) hoi. ((hieu ve) or (hieu van)) cam luan van hanh le cua triet*.