Perhaps you should try some spelling variations:
sang lai » sang tai, sang lap, mang lai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
sang ma » tang ma, nang ma, sang tao
va hanh » van hanh, va thanh, va danh
hieu v » hieu va, hieu ve, hieu 2
v pham » vi pham, d pham
vi cua » vai cua, di 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 ma)) hoi. hieu v pham duc va hanh ((vi cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((sang lai) OR (sang ma)) hoi. hieu v pham duc va hanh ((vi cua) OR (dai cua)) te.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((sang lai) or (sang ma)) hoi. hieu v pham duc va hanh ((vi cua) or (dai cua)) te*.