Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
ban hanh » ban hang
cham xuc » cam xuc, chat xuc, cham soc
te sach » toc sach
xuc ban » duc ban, cuc ban, quoc ban
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu vu » hieu va, hieu su, dieu vu
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (thuat sach)) ky tang xa hoi. ((hieu vu) OR (hieu ve)) cham xuc ban hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuat sach)) ky tang xa hoi. ((hieu vu) OR (hieu ve)) cham xuc ban hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thuat sach)) ky tang xa hoi. ((hieu vu) OR (hieu ve)) cham xuc ban hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuat sach)) ky tang xa hoi. ((hieu vu) OR (hieu ve)) cham xuc ban hanh vi cua te*.