Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cac xuc » cac nuoc, chat xuc, cac cuoc
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
vi cua » vai cua, di 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 ((cac xuc) OR (cam xuc)) van hanh vi cua tuc~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach v nang ma hoi. hieu ve ((cac xuc) OR (cam xuc)) van hanh vi cua tuc".
• Adding a wildcard symbol may retrieve word variants: toc sach v nang ma hoi. hieu ve ((cac xuc) OR (cam xuc)) van hanh vi cua tuc*.