Perhaps you should try some spelling variations:
cua triet » su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
te sach » toc sach
hieu va » lieu va, hieu qua
va tinh » may tinh
tinh vi » trinh vi, tinh voi, tinh va
co xuc » co xuoc, co xua
xuc va » duc va, tuc va, luc va
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (te sach)) ky nang xa hoi. hieu va co xuc va tinh vi ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) ky nang xa hoi. hieu va co xuc va tinh vi ((cua triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) ky nang xa hoi. hieu va co xuc va tinh vi ((cua triet) or (cua viet))*.