Perhaps you should try some spelling variations:
sang lap » sang ma, sang tai, dan lap
pham duy » pham duc
cham duc » pham duc, cham soc, phan duc
sang tao » hang tai
so sach » so sanh, bo sach, co sach
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
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 ty ((sang lap) or (sang tao)) hai. hieu ve ((cham duc) or (pham duy)) va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty ((sang lap) OR (sang tao)) hai. hieu ve ((cham duc) OR (pham duy)) va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: so sach ty ((sang lap) or (sang tao)) hai. hieu ve ((cham duc) or (pham duy)) va hanh vi cua te*.