Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh do » trinh do, tinh doi, tinh da
va tinh » may tinh
cau luc » cau truc, cau phuc
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, tu cach
te sach » toc sach
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va
do cua » doi cua, co 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: ((tu sach) OR (te sach)) y nang xa hoi. ((hieu ve) or (lieu va)) cau luc va tinh do cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) y nang xa hoi. ((hieu ve) OR (lieu va)) cau luc va tinh do cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) y nang xa hoi. ((hieu ve) or (lieu va)) cau luc va tinh do cua triet*".