Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
chat huu » pham huu
cham xuc » cam xuc, chat xuc, cham soc
van hanh » van thanh, ban hanh, van anh
cua tuc » cua duc, cua thuoc, luat tuc
sang ma » tang ma, nang ma, sang tao
hieu ve » hieu va, hieu van
cua tu » cua su, cua cu, cua te
sach v » sach va, sach y, sach 2
ma hoi » mai hoi, xa hoi, ma hoa
v sang » va sang, ve sang, _ sang

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach v sang ma hoi. hieu ve ((cham xuc) or (chat huu)) van hanh vi ((cua tuc) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach v sang ma hoi. hieu ve ((cham xuc) OR (chat huu)) van hanh vi ((cua tuc) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: toc sach v sang ma hoi. hieu ve ((cham xuc) or (chat huu)) van hanh vi ((cua tuc) or (cua tu))*.