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