Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu hien » bieu hien, dieu hien, chieu chien
va trien » va truyen, va thiet, va tuyen
hien cac » thien cac, vien cac, hieu cac
dua tren » dung tren
dinh ve » dinh ket, dinh van
va dinh » van dinh, va kinh, va tinh
cac bao » cach bao, cac bai, cac ban
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
bao va » bao ve, tao va, ban va
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang xa hoi. hieu hien cac bao va dinh ve ((dua tren) or (((cua triet) or (va trien))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu hien cac bao va dinh ve ((dua tren) OR (((cua triet) OR (va trien)))).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu hien cac bao va dinh ve ((dua tren) or (((cua triet) or (va trien))))*.