Perhaps you should try some spelling variations:
nang van » dang van, tang van, lang van
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
va triet » va thiet, va trien, cua triet
ve triet » va trien
su triet » su viet, su tien
van hoe » van hoa, van hoc, van hieu
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang van hoe. hieu van nam thuc dan hanh vi ((((va triet) OR (ve triet))) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang van hoe. hieu van nam thuc dan hanh vi ((((va triet) OR (ve triet))) OR (su triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang van hoe. hieu van nam thuc dan hanh vi ((((va triet) OR (ve triet))) or (su triet))*".