Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
bien tinh » bi tinh, yen tinh, diep tinh
trinh cua » tinh cua, trinh luat, trinh quan
hoc bien » hoc hien, hoc vien, hoa bien
cua dung » cua dang, cua dong, qua dung
dan chan » dan gian, dan ca, van chat
van than » van thanh, van thang, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc bien tinh - hanh trinh cua dung trong ((((dan chan) or (van than))) or (tinh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc bien tinh - hanh trinh cua dung trong ((((dan chan) OR (van than))) OR (tinh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc bien tinh - hanh trinh cua dung trong ((((dan chan) or (van than))) or (tinh toan)) cau*.