Perhaps you should try some spelling variations:
va hanh » van hanh, va thanh, va danh
va chat » van chat, va phat, cao chat
sach ty » sach tu, sach thu, xach tay
va cham » va tham
lang xa » lang ha, dang xay, lang van
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
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 ty) OR (sach y)) lang xa hoi. hieu ((va cham) or (va chat)) xuc va hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach y)) lang xa hoi. hieu ((va cham) OR (va chat)) xuc va hanh vi cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) OR (sach y)) lang xa hoi. hieu ((va cham) or (va chat)) xuc va hanh vi cua tu".
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) OR (sach y)) lang xa hoi. hieu ((va cham) or (va chat)) xuc va hanh vi cua tu*.