Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
ve cham » va cham, ve chat, vu cham
su viet » so viet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ve cam » ve cac, ve cai, ve cau
va cam » va cham, va cac, va cao
va ban » van ban, va bai, va bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang xa hoi. hieu ((((ve cam) OR (va cam))) or (ve cham)) tu va ban va su viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu ((((ve cam) OR (va cam))) OR (ve cham)) tu va ban va su viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu ((((ve cam) OR (va cam))) or (ve cham)) tu va ban va su viet".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu ((((ve cam) OR (va cam))) or (ve cham)) tu va ban va su viet*.