Perhaps you should try some spelling variations:
thuc giai » thuoc giao, hoc giai, thuc thai
va triet » va thiet, va trien, ve triet
giai han » giai san, giai phap, giai phau
cac thuc » cach thuc, cac thu, can thuc
nang xa » nang x, lang xa, nang ma
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach kem
cuu tre » cua tre, cau tren, cau treo
han vi » hanh vi, han vui, hang vi

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 ky) OR (sach ty)) nang xa hoi. hieu va cac thuc giai han vi ((cuu tre) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo ((sach ky) OR (sach ty)) nang xa hoi. hieu va cac thuc giai han vi ((cuu tre) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo ((sach ky) OR (sach ty)) nang xa hoi. hieu va cac thuc giai han vi ((cuu tre) or (va triet))".
• Adding a wildcard symbol may retrieve word variants: bo ((sach ky) OR (sach ty)) nang xa hoi. hieu va cac thuc giai han vi ((cuu tre) or (va triet))*.