Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
vat thanh » dat thanh, gat thanh, tat thanh
cac thuc » cach thuc, cac thu, can thuc
su triet » su viet, su tien, ve triet
co sach » bo sach, cuon sach, hoc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va
vai su » va su, van su, lai su

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ky nang xa hoi. ((hieu va) or (hieu qua)) cac thuc vat thanh vai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ky nang xa hoi. ((hieu va) OR (hieu qua)) cac thuc vat thanh vai su triet.
• Adding a wildcard symbol may retrieve word variants: co sach ky nang xa hoi. ((hieu va) or (hieu qua)) cac thuc vat thanh vai su triet*.