Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va hanh » van hanh, va thanh, va danh
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
nang xa » lang xa, nang ma, mang xa
so viet » hoc viet
ve cam » ve cham, ve cac, va cam
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: thu sach ty ((nang xa) or (nang x)) hoi. hieu ve cam xuc va hanh vi ((su viet) OR (so viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty ((nang xa) OR (nang x)) hoi. hieu ve cam xuc va hanh vi ((su viet) OR (so viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty ((nang xa) or (nang x)) hoi. hieu ve cam xuc va hanh vi ((su viet) OR (so viet))".
• Adding a wildcard symbol may retrieve word variants: thu sach ty ((nang xa) or (nang x)) hoi. hieu ve cam xuc va hanh vi ((su viet) OR (so viet))*.