Perhaps you should try some spelling variations:
vat thanh » dat thanh, gat thanh, tat thanh
cac thuc » cach thuc, cac thu, can thuc
thanh va » thanh van, hanh va, thanh ha
su triet » su viet, su tien
ve triet » va trien
hoc sac » hoc sach, hoc cac, hoc mac
nang xa » nang x, lang xa, nang ma
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: hoc sac ky nang xa hoi. lieu va cac thuc vat thanh va ((su triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sac ky nang xa hoi. lieu va cac thuc vat thanh va ((su triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: hoc sac ky nang xa hoi. lieu va cac thuc vat thanh va ((su triet) or (ve triet))*.