Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
tuc van » thuc van, truc van, duc van
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
vai su » va su, lai su, tai su
van su » dan su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang xa hoi. hieu ve cam ((tuc van) or (tuc va)) anh ((vai su) OR (van su)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu ve cam ((tuc van) OR (tuc va)) anh ((vai su) OR (van su)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu ve cam ((tuc van) or (tuc va)) anh ((vai su) OR (van su)) triet*".