Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » ban thanh, va tinh, le thanh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hai cua » thai cua, dai cua, hoi cua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cam » va cham, va cao, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky lang xa hoi. hieu ((va cam) or (va cac)) duc ((va thanh) OR (gia thanh)) hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. hieu ((va cam) OR (va cac)) duc ((va thanh) OR (gia thanh)) hai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. hieu ((va cam) or (va cac)) duc ((va thanh) OR (gia thanh)) hai cua triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu ((va cam) or (va cac)) duc ((va thanh) OR (gia thanh)) hai cua triet*.