Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hoc thien » hoc hien, hoc thieu, hoc thiet
nang quan » ban quan, nang suat
hang luan » tang luan, dung luan
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien thanh - anh ((nang quan) or (hang luan)) dung ((cong dan) OR (cong san)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - anh ((nang quan) OR (hang luan)) dung ((cong dan) OR (cong san)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien thanh - anh ((nang quan) or (hang luan)) dung ((cong dan) OR (cong san)) than cau".
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - anh ((nang quan) or (hang luan)) dung ((cong dan) OR (cong san)) than cau*.