Perhaps you should try some spelling variations:
van lam » van nam
vai cuu » vai cua
dan vai » dan va, dan tai, dan vat
thuc va » thuc vat, thuc dan, thuc day
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
va dan » ca dan, va dao, va dau
van am » van nam, van dam, van ai

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sach ky) or (sach y)) lang xa hoi. hieu ((van am) OR (van lam)) thuc va dan vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach ky) OR (sach y)) lang xa hoi. hieu ((van am) OR (van lam)) thuc va dan vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach ky) or (sach y)) lang xa hoi. hieu ((van am) OR (van lam)) thuc va dan vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: toc ((sach ky) or (sach y)) lang xa hoi. hieu ((van am) OR (van lam)) thuc va dan vai cuu tre*.