Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cuu tre » cua tre, cau treo
va hanh » van hanh, va thanh, va danh
cao xuc » cam xuc, cao duc, cao suc
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
lang ha » long ha
qua cao » qua cac, qua ca, qua cai
xuc va » duc va, tuc va, luc va

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