Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thieu » toc thieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
luan hang » luan han, luan hung, luan tang
luan nang » luan van, van nang, luan san
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

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