Perhaps you should try some spelling variations:
nang khoa » hang khoa, dang khoa, nang hoa
khoa hoc » hoa hoc
van hanh » van thanh, ban hanh, van anh
te cach » ve cach, te sach, tu cach
cua cau » cua cac, cua chu, cua can
xuc van » duc van, luc van, vuc van
cua cay » cua cac
van cau » van dau, van hau, van chat
cach tu » cach thuc
van cac » van hac, van bac, dan cac
tu nang » tru nang, tu nong, tu nano

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cach tu nang khoa hoc. hieu ((van cac) or (van cau)) xuc van hanh vi ((cua cau) OR (cua cay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cach tu nang khoa hoc. hieu ((van cac) OR (van cau)) xuc van hanh vi ((cua cau) OR (cua cay))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cach tu nang khoa hoc. hieu ((van cac) or (van cau)) xuc van hanh vi ((cua cau) OR (cua cay))*".