Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
theo chu » theo chieu, cho chu, theo yeu
chao chu » cho chu, cua chu, cao cho
tan toan » tap toan, van toan, dan toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (chao chu)) xanh - hanh trinh quan dung cong ((tan toan) OR (tan tran)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (chao chu)) xanh - hanh trinh quan dung cong ((tan toan) OR (tan tran)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chu) or (chao chu)) xanh - hanh trinh quan dung cong ((tan toan) OR (tan tran)) cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (chao chu)) xanh - hanh trinh quan dung cong ((tan toan) OR (tan tran)) cau*.