Perhaps you should try some spelling variations:
giai thanh » gia thanh, gian thanh, giay thanh
thuc giai » thuoc giao, hoc giai, thuc thai
va triet » va thiet, va trien, ve triet
thanh vi » hanh vi, thanh va, thanh ve
cac thuc » cach thuc, cac thu, can thuc
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
nang xa » nang x, nang ma, mang xa
cuu tre » cua tre, cau tren, cau treo
bo sach » co sach, hoc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ty ((nang xa) or (lang xa)) hoi. hieu va cac thuc giai thanh vi ((cuu tre) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ty ((nang xa) OR (lang xa)) hoi. hieu va cac thuc giai thanh vi ((cuu tre) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: bo sach ty ((nang xa) or (lang xa)) hoi. hieu va cac thuc giai thanh vi ((cuu tre) or (va triet))*.