Perhaps you should try some spelling variations:
phong chong » thong thong
thanh phan » thanh pho, thanh san, thanh toan
chong ban » hong ban, phong ban, chong buon
va phong » van phong, va phuong, va thong
ban than » ban thanh, van thanh, ban hang
than tap » toan tap, han tap, phan tap
phan va » phan van, nhan va, han va

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 hanh) OR (dieu hanh)) - thanh phan va phong chong ban than tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien hanh) OR (dieu hanh)) - thanh phan va phong chong ban than tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien hanh) OR (dieu hanh)) - thanh phan va phong chong ban than tap*.