Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
tu van » tu va
va cam » va cham, va cac, va cao
di su » doi su, ki su, da su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu van ky ((nang xa) OR (nang ma)) hoi. lieu va cam xuc van hanh di su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu van ky ((nang xa) OR (nang ma)) hoi. lieu va cam xuc van hanh di su triet".
• Adding a wildcard symbol may retrieve word variants: tu van ky ((nang xa) OR (nang ma)) hoi. lieu va cam xuc van hanh di su triet*.