Perhaps you should try some spelling variations:
giai hanh » giai han, gia hanh, giao hanh
thuc giai » thuoc giao, hoc giai, thuc thai
cua triet » cua viet, su triet, va triet
cac thuc » cach thuc, cac thu, can thuc
cau theo » cau thi, cau tao
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua

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