Perhaps you should try some spelling variations:
sang tai » hang tai, sang tao, tang tai
sang lap » sang tao, sang ma, dan lap
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
su sach » so sach, vu sach
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua cu

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 ((sang lap) or (sang tai)) hai. hieu ve cam xuc va hanh vi ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((sang lap) OR (sang tai)) hai. hieu ve cam xuc va hanh vi ((cua te) OR (cua tu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((sang lap) or (sang tai)) hai. hieu ve cam xuc va hanh vi ((cua te) OR (cua tu))*".