Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
hien hanh » dieu hanh
van dang » van dong, van dung, van nang
cong dan » cong san, cong tan, huong dan
toan tap » toan ban
phan tap » phan lap, han tap, pha tap
va dang » va nang, va lang, da dang

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 - thanh tuong ((va dang) OR (van dang)) cong dan ((toan tap) or (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - thanh tuong ((va dang) OR (van dang)) cong dan ((toan tap) OR (phan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien hanh - thanh tuong ((va dang) OR (van dang)) cong dan ((toan tap) or (phan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - thanh tuong ((va dang) OR (van dang)) cong dan ((toan tap) or (phan tap))*.