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

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) OR (hanh vi)) 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) OR (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 ((chat xuc) or (cam xuc)) van ((hanh di) OR (hanh vi)) 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) OR (hanh vi)) cua tuc*.