Perhaps you should try some spelling variations:
su sach » vu sach
va hanh » van hanh, va thanh, va danh
cao xuc » cam xuc, cao duc, cao suc
qua cao » qua cac, qua ca, qua cai
lang ha » long ha
nang xa » nang x, lang xa, nang ma
so sach » so sanh, bo sach, co sach
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) ky ((nang xa) or (lang ha)) hoi. hieu qua cao xuc va hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky ((nang xa) OR (lang ha)) hoi. hieu qua cao xuc va hanh vi cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky ((nang xa) or (lang ha)) hoi. hieu qua cao xuc va hanh vi cuu tre*".