Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach ty » sach y, sach tu, sach thu
van cua » vang cua, ban cua, dan cua
te sach » toc sach
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va
loc va » hoc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang xa hoi. hieu ((ve cam) or (va cac)) ((luc va) OR (loc va)) dinh van cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. hieu ((ve cam) OR (va cac)) ((luc va) OR (loc va)) dinh van cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. hieu ((ve cam) or (va cac)) ((luc va) OR (loc va)) dinh van cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu ((ve cam) or (va cac)) ((luc va) OR (loc va)) dinh van cua triet*.