Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
trinh vat » trinh van, trinh luat, sinh vat
vat nhung » va nhung, vap nhung, vai nhung
manh toan » thanh toan, anh tuan, tinh toan
hien anh » hien hanh, thien anh, dien anh
dan toan » van toan, xuan toan, dien toan
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien anh - hanh trinh vat nhung cong ((((dan toan) OR (manh toan))) or (dan than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien anh - hanh trinh vat nhung cong ((((dan toan) OR (manh toan))) OR (dan than)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien anh - hanh trinh vat nhung cong ((((dan toan) OR (manh toan))) or (dan than)) cau*".