Perhaps you should try some spelling variations:
cuu tre » cua tre, cau tren, cau treo
va hanh » van hanh, va thanh, va danh
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
ve cac » va cac, vien cac
ke san » ke dan
luc va » duc va, tuc va, loc va
vi cuu » vi luu, vinh cuu
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) or (ke san)) ky ((nang xa) or (lang xa)) hoi. hieu ve cac luc va hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (ke san)) ky ((nang xa) OR (lang xa)) hoi. hieu ve cac luc va hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (ke san)) ky ((nang xa) or (lang xa)) hoi. hieu ve cac luc va hanh vi cuu tre*.