Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sang ma » tang ma, nang ma, sang tao
hieu va » lieu va, hieu qua
cao tuc » dao tuc, cao duc, cao suc
xa hanh » xa thanh, xa khanh, va hanh
vai cua » dai cua, hai cua, lai cua
va cao » va cac, va co, va dao
vi 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 y ((sang ma) or (mang may)) hoi. hieu va cao tuc xa hanh ((vi cua) or (vai cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((sang ma) OR (mang may)) hoi. hieu va cao tuc xa hanh ((vi cua) OR (vai cua)) tu.
• Adding a wildcard symbol may retrieve word variants: tu sach y ((sang ma) or (mang may)) hoi. hieu va cao tuc xa hanh ((vi cua) or (vai cua)) tu*.