Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
danh di » danh du, xanh di, danh dien
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
xuc va » tuc va, luc va, xac va
di cua » dai cua, doi cua, de cua

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 v nang xa hoi. ((hieu va) or (lieu va)) cam ((xuc va) OR (duc va)) danh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang xa hoi. ((hieu va) OR (lieu va)) cam ((xuc va) OR (duc va)) danh di cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang xa hoi. ((hieu va) or (lieu va)) cam ((xuc va) OR (duc va)) danh di cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach v nang xa hoi. ((hieu va) or (lieu va)) cam ((xuc va) OR (duc va)) danh di cua triet*.