Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cuu tre » cua tre, cau tren, cau treo
luc van » luoc van, luu van, duc van
va cham » va chat, va tham
ve cham » ve chat, vu cham, ve chim
nang ma » tang ma, sang ma, nang cao
mang xa » lang xa, mang may, dang xay
vi cuu » vi luu, vinh cuu
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cac ky ((mang xa) or (nang ma)) hoi. hieu ((ve cham) OR (va cham)) luc van hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ky ((mang xa) OR (nang ma)) hoi. hieu ((ve cham) OR (va cham)) luc van hanh vi cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cac ky ((mang xa) or (nang ma)) hoi. hieu ((ve cham) OR (va cham)) luc van hanh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: te cac ky ((mang xa) or (nang ma)) hoi. hieu ((ve cham) OR (va cham)) luc van hanh vi cuu tre*.