Perhaps you should try some spelling variations:
hanh nhan » thanh nhan, danh nhan, anh nhan
qua trong » quan trong, qua trinh, qua song
thao hoc » thai hoc, than hoc, thao khoa
hoc manh » hoc anh, hoc hanh, hoc danh
nhan qua » nhan cua, nhat qua, phan quan
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, thanh cac
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: thao hoc manh - hanh nhan qua trong cong dan ((than cap) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thao hoc manh - hanh nhan qua trong cong dan ((than cap) OR (toan cau))*.