Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
cau treo » cau theo, cau triet, cau trieu
cam thuc » am thuc, nam thuc, cam thu
cau tren » cu tren, dau tren, ca tren
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. ((hieu ve) OR (hieu van)) cam thuc va thanh lai ((cau tren) OR (cau treo))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. ((hieu ve) OR (hieu van)) cam thuc va thanh lai ((cau tren) or (cau treo))~".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. ((hieu ve) OR (hieu van)) cam thuc va thanh lai ((cau tren) or (cau treo))*.