Perhaps you should try some spelling variations:
vat thanh » dat thanh, gat thanh, tat thanh
cac thuc » cach thuc, cac thu, cay thuc
can thuc » dan thuc, van thuc, cay thuc
thanh va » thanh van, hanh va, thanh ha
su triet » su viet, su tien
ve triet » va trien
bo sach » co sach, hoc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ky nang xa hoi. lieu va ((cac thuc) OR (can thuc)) vat thanh va ((su triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ky nang xa hoi. lieu va ((cac thuc) OR (can thuc)) vat thanh va ((su triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach ky nang xa hoi. lieu va ((cac thuc) OR (can thuc)) vat thanh va ((su triet) or (ve triet))".
• Adding a wildcard symbol may retrieve word variants: bo sach ky nang xa hoi. lieu va ((cac thuc) OR (can thuc)) vat thanh va ((su triet) or (ve triet))*.