Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
chat xuc » chat huu, chao xu, chat cua
van hanh » van thanh, ban hanh, van anh
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
cua tuc » cua duc, cua tu, cua thuoc
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
ma hoi » mai hoi, xa hoi, ma hoa
di cua » dai cua, doi cua, de cua

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 nang ma hoi. hieu ve ((chat xuc) or (cam xuc)) van hanh di cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach v nang ma hoi. hieu ve ((chat xuc) OR (cam xuc)) van hanh di cua tuc.
• Adding a wildcard symbol may retrieve word variants: toc sach v nang ma hoi. hieu ve ((chat xuc) or (cam xuc)) van hanh di cua tuc*.