Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
lang ha » long ha
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
ve cau » va cau, ve cac, le cau
ke cau » ket cau
vi cua » vai cua, di cua
te sac » te sach, te cac, te san

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 xa) or (lang ha)) hoi. hieu ((ve cau) or (ke cau)) duc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((nang xa) OR (lang ha)) hoi. hieu ((ve cau) OR (ke cau)) duc va hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky ((nang xa) or (lang ha)) hoi. hieu ((ve cau) or (ke cau)) duc va hanh vi cua tre*.