Perhaps you should try some spelling variations:
thien hieu » thien nhien, thien chien, thien hue
theo hieu » theo chieu, theo tieu, thuc hieu
hanh mang » nhanh mang, hanh trang, nhanh lang
cua trong » cua truong, cua trung, qua trong
mang cua » manh cua, dung cua, ban cua
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: ((theo hieu) OR (thien hieu)) lang - hanh mang cua trong cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo hieu) OR (thien hieu)) lang - hanh mang cua trong cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo hieu) OR (thien hieu)) lang - hanh mang cua trong cong tac toan cau*.