Perhaps you should try some spelling variations:
ky nganh » ky nang, ly ngan, k ngan
nganh xa » nganh xay, nganh ma, nganh mac
hieu va » hieu qua
cam duc » cam xuc, cao duc, pham duc
va tinh » may tinh
tinh vi » trinh vi, tinh voi, tinh va
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
vi cua » vai cua, di 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 sac ky nganh xa hoi. ((hieu va) OR (lieu va)) cam duc va tinh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nganh xa hoi. ((hieu va) OR (lieu va)) cam duc va tinh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nganh xa hoi. ((hieu va) OR (lieu va)) cam duc va tinh vi cua tre*.