Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nham chuc » pham chuc, nham thuc, nhom chuc
hanh tai » thanh tai, hang tai, han tai
dao hanh » dao thanh, dang hanh, ban hanh
chuc dao » chuan dao, chuc danh, chuc giao
toc sach » hoc sach, doc sach, thuoc sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve nham » ve nha, ve cham
tai cua » thai cua, tai cuc, tri cua
su sach » so sach, vu sach
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (((te sach) or (toc sach)))) ky nang ma hoi. hieu ve nham chuc dao hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (((te sach) OR (toc sach)))) ky nang ma hoi. hieu ve nham chuc dao hanh tai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (((te sach) or (toc sach)))) ky nang ma hoi. hieu ve nham chuc dao hanh tai cua triet*.