Perhaps you should try some spelling variations:
hieu cau » nhieu cau, hieu cac, hieu ca
sang lai » sang tai, mang lai, sang mai
hanh vai » hanh vi, hanh va, hanh tai
sang lap » sang tao, sang ma, sang tai
cau cham » ca cham, cau chan, cau chap
vai cua » dai cua, hai cua, lai cua
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
cua te » cua tu
xu va » xu van, su va, vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky ((sang lai) OR (sang lap)) roi. hieu cau cham ((xu va) or (tu va)) hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky ((sang lai) OR (sang lap)) roi. hieu cau cham ((xu va) OR (tu va)) hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky ((sang lai) OR (sang lap)) roi. hieu cau cham ((xu va) or (tu va)) hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu san ky ((sang lai) OR (sang lap)) roi. hieu cau cham ((xu va) or (tu va)) hanh vai cua te*.