Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tai » thanh tai, hang tai, han tai
cua tre » cua te, cuu tre, dua tren
va hanh » van hanh, va thanh, va danh
va chat » van chat, va phat, cao chat
va cham » va tham
sac ky » cac ky, sai ky
luc va » duc va, tuc va, loc va
te sac » te sach, te cac, te san
x hoi » xa hoi, o hoi, x ho

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 nang x hoi. hieu ((va cham) or (va chat)) luc va hanh tai ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang x hoi. hieu ((va cham) OR (va chat)) luc va hanh tai ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang x hoi. hieu ((va cham) or (va chat)) luc va hanh tai ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang x hoi. hieu ((va cham) or (va chat)) luc va hanh tai ((cua tre) OR (cua triet))*.