Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dan hanh » dang hanh, dan khanh, dan thanh
thuc dan » thuc hanh, hoc dan, thuc vat
thu sach » tu sach, thuat sach, thuoc sach
dang xay » dang van, van xay
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hanh va » hang va, hanh vi
va cua » va chua, via cua, ca cua
va hac » van hac, va khac, va hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky ((nang xa) or (dang xay)) hoi. lieu ((va hac) OR (va cac)) thuc dan hanh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky ((nang xa) OR (dang xay)) hoi. lieu ((va hac) OR (va cac)) thuc dan hanh va cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky ((nang xa) or (dang xay)) hoi. lieu ((va hac) OR (va cac)) thuc dan hanh va cua triet*".