Perhaps you should try some spelling variations:
thi chieu » thi chien, thi hieu, theo chieu
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
manh toan » thanh toan, anh tuan
ho chieu » theo chieu, hoc thieu, doi chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thi chieu) or (ho chieu)) tinh - hanh tang luan nang cong ((manh toan) OR (tinh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi chieu) OR (ho chieu)) tinh - hanh tang luan nang cong ((manh toan) OR (tinh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thi chieu) or (ho chieu)) tinh - hanh tang luan nang cong ((manh toan) OR (tinh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: ((thi chieu) or (ho chieu)) tinh - hanh tang luan nang cong ((manh toan) OR (tinh toan)) cau*.