Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc van » thuc vat, thuc dan, thuc va
sach ky » sac ky, sach y, sach ty
hang vi » hang va, hanh vi, khang voi
hang di » hang doi, hang dien, hang dich
su sach » so sach, vu sach
tuc van » truc van, tuc va, duc van
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
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 ((tuc van) OR (thuc van)) ((hang di) or (hang vi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ve cam ((tuc van) OR (thuc van)) ((hang di) OR (hang vi)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu ve cam ((tuc van) OR (thuc van)) ((hang di) or (hang vi)) cua triet*".