Perhaps you should try some spelling variations:
thieu nang » thien nang, thieu khang, thieu quang
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
ve cham » va cham, ve chat, ve chim
vu cham » va cham, vu kham, tu cham
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
vi su » ve su, ki su, oi 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 sach thieu nang xa hoi. hieu ((ve cham) OR (vu cham)) xuc va hanh ((vi su) or (va su)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thieu nang xa hoi. hieu ((ve cham) OR (vu cham)) xuc va hanh ((vi su) OR (va su)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thieu nang xa hoi. hieu ((ve cham) OR (vu cham)) xuc va hanh ((vi su) or (va su)) triet".
• Adding a wildcard symbol may retrieve word variants: tu sach thieu nang xa hoi. hieu ((ve cham) OR (vu cham)) xuc va hanh ((vi su) or (va su)) triet*.