Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
hieu va » lieu va, hieu qua
cac xuc » cac nuoc, chat xuc, cac cuoc
minh di » minh ai, minh de, minh duc
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

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 ky tang ma hoi. hieu va ((cac xuc) or (cam xuc)) van minh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky tang ma hoi. hieu va ((cac xuc) OR (cam xuc)) van minh di cua tu.
• Adding a wildcard symbol may retrieve word variants: toc sach ky tang ma hoi. hieu va ((cac xuc) or (cam xuc)) van minh di cua tu*.