Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
dang xay » dang van, van xay
vai cua » hai cua, lai cua, bai cua
xa hanh » xa thanh, xa khanh, va hanh
van cau » van dau, van hau, van chat
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
cau te » cau tu, cau de, cau theo
te xa » te 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 sach ty ((dang xay) or (nang x)) hoi. hieu van cau te xa hanh ((vai cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((dang xay) OR (nang x)) hoi. hieu van cau te xa hanh ((vai cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((dang xay) or (nang x)) hoi. hieu van cau te xa hanh ((vai cua) or (dai cua)) tre*.