Perhaps you should try some spelling variations:
thuc van » thuc vat, thuc dan, thuc hanh
su triet » su viet, su tien, ve triet
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
hanh de » hanh ve, hanh kem
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho
de su » den su, ve su, de tu

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 x hoi. hieu ve cac ((thuc van) or (thuc va)) hanh de su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang x hoi. hieu ve cac ((thuc van) OR (thuc va)) hanh de su triet*.