Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van cach » va cach, van canh, vat cach
dan thai » dang thai, dan thi, dan than
thai cuu » thai cua, tai cuc, thi cuc
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
cach tu » cach thuc
cuu tre » cua tre, cau tren, cau treo
va dan » ca dan, va dao, va dau

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) or (sach ty)) nang xa hoi. hieu van cach tu va dan thai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach y) OR (sach ty)) nang xa hoi. hieu van cach tu va dan thai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach y) or (sach ty)) nang xa hoi. hieu van cach tu va dan thai cuu tre*.