Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc van » thuc vat, thuc dan, thuc hanh
thuc va » thuc vat, thuc dan, thuc day
hanh de » hanh ve, hanh kem
hanh di » hanh vi, hang di, danh di
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu ve cam ((thuc van) or (thuc va)) ((hanh di) OR (hanh de)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu ve cam ((thuc van) OR (thuc va)) ((hanh di) OR (hanh de)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu ve cam ((thuc van) or (thuc va)) ((hanh di) OR (hanh de)) cua triet*".