Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
nang ji » nang si, nang noi, nang tai
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
tuc va » truc va, tuc xa, duc va
ji 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 lang xa hoi. hieu ve cac ((tuc va) OR (thuc va)) nang ji cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky lang xa hoi. hieu ve cac ((tuc va) OR (thuc va)) nang ji cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sac ky lang xa hoi. hieu ve cac ((tuc va) OR (thuc va)) nang ji cua triet*.