Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cuu tre » cua tre, cau tren, cau treo
vu cham » va cham, vu kham, tu cham
mang xa » mang may, dang xay, mang cua
lang xa » lang ha, dang xay, lang van
xuc van » duc van, luc van, xuc ban
vi cuu » vi luu, vinh cuu
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky ((mang xa) OR (lang xa)) hoi. hieu ((ve cam) OR (vu cham)) xuc van hanh vi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky ((mang xa) OR (lang xa)) hoi. hieu ((ve cam) OR (vu cham)) xuc van hanh vi cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu san ky ((mang xa) OR (lang xa)) hoi. hieu ((ve cam) OR (vu cham)) xuc van hanh vi cuu tre*.