Perhaps you should try some spelling variations:
tang lap » sang lap, tan lap, tang ap
va hanh » van hanh, va thanh, va danh
cam luc » cau luc
sach ky » sac ky, sach y, sach kem
hieu ve » hieu va, hieu van
lap hai » lap tai, lap lai, lap hoat
sach ty » sach y, sach tu, sach thu
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sach ky) OR (sach ty)) tang lap hai. hieu ve ((cam luc) or (cam xuc)) va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach ky) OR (sach ty)) tang lap hai. hieu ve ((cam luc) OR (cam xuc)) va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach ky) OR (sach ty)) tang lap hai. hieu ve ((cam luc) or (cam xuc)) va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: so ((sach ky) OR (sach ty)) tang lap hai. hieu ve ((cam luc) or (cam xuc)) va hanh vi cua te*.