Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cam truc » cau truc, nam truc, lam truoc
hang doi » hang di, hang loi, huong doi
truc van » truc va, thuc van, truc ban
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
hanh di » hanh de, hang di, danh di
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
ve cam » ve cham, ve cac, va cam

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