Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hoc thien » hoc hien, hoc thieu, hoc thiet
hanh dung » thanh dung, anh dung, hanh dong
luan nang » luan van, van nang, luan san
nong dan » cong dan, nguong dan, huong dan
nong san » cong san, dong san, trong san
cong tan » cong tac, cong san, cong thanh
phan cau » phan dau, phan cac, phan tu

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 - hanh dung luan nang ((((nong dan) OR (nong san))) or (cong tan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - hanh dung luan nang ((((nong dan) OR (nong san))) OR (cong tan)) phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien thanh - hanh dung luan nang ((((nong dan) OR (nong san))) or (cong tan)) phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - hanh dung luan nang ((((nong dan) OR (nong san))) or (cong tan)) phan cau*.