Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dang xay » dang van, van xay
va thanh » gia thanh, ban thanh, va tinh
van hanh » van thanh, ban hanh, van anh
va cham » va chat, va tham
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ve chim » va chim, ve cham, ve chinh
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky dang xay hoi. hieu ((ve chim) or (va cham)) tuc ((van hanh) or (va thanh)) dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang xay hoi. hieu ((ve chim) OR (va cham)) tuc ((van hanh) OR (va thanh)) dai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky dang xay hoi. hieu ((ve chim) or (va cham)) tuc ((van hanh) or (va thanh)) dai cua triet*.