Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
hien hanh » dieu hanh
lang cong » dang cong, bang cong, hang cong
tuong va » truong va, thuong va, luong va
cong dan » cong san, cong tan, huong dan
than tap » toan tap, than cap, thanh lap
phan tap » phan lap, pha tap, phan tu
va lang » va nang, hoa lang
han tap » han tai, toan tap, nhan tai

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