Perhaps you should try some spelling variations:
qua trinh » qua kinh
hoc hieu » hoc thieu, hoc hien, hoc dieu
doc hieu » toc thieu, hoc thieu, hoc hien
co trong » ro trong, cong trong, cay trong
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 hieu) OR (doc hieu)) nganh - canh tranh ((co trong) or (qua trinh)) cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (doc hieu)) nganh - canh tranh ((co trong) OR (qua trinh)) cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hieu) OR (doc hieu)) nganh - canh tranh ((co trong) or (qua trinh)) cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) OR (doc hieu)) nganh - canh tranh ((co trong) or (qua trinh)) cong tac toan cau*.