Perhaps you should try some spelling variations:
giai thanh » gia thanh, gian thanh, giay thanh
thuc giai » thuoc giao, hoc giai, thuc thai
cua triet » cua viet, su triet, va triet
cac thuc » cach thuc, cac thu, can thuc
thanh va » thanh van, hanh va, thanh ha
sach ly » sach lo, sach ty, sach hay
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sach ly) OR (sach y)) nang xa hoi. hieu va cac thuc giai thanh va ((cuu tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach ly) OR (sach y)) nang xa hoi. hieu va cac thuc giai thanh va ((cuu tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach ly) OR (sach y)) nang xa hoi. hieu va cac thuc giai thanh va ((cuu tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: so ((sach ly) OR (sach y)) nang xa hoi. hieu va cac thuc giai thanh va ((cuu tre) or (cua triet))*.