Perhaps you should try some spelling variations:
sang lap » sang tao, sang ma, sang tai
sang lai » sang tai, mang lai, sang mai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
va hanh » van hanh, va thanh, va danh
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((sang lai) or (sang lap)) hoi. hieu ve pham duc va hanh ((vi cua) or (di cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((sang lai) OR (sang lap)) hoi. hieu ve pham duc va hanh ((vi cua) OR (di cua)) te.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((sang lai) or (sang lap)) hoi. hieu ve pham duc va hanh ((vi cua) or (di cua)) te*.