Perhaps you should try some spelling variations:
thieu lang » hieu lang, thieu khang, thieu quang
doc sach » hoc sach, toc sach, nuoc sach
van hanh » van thanh, ban hanh, van anh
va hanh » va thanh, va danh, ban hanh
va chat » van chat, va phat, cao chat
va cham » va tham
lang xa » lang ha, dang xay, lang van
ve cua » le cua, de cua, te cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach thieu lang xa hoi. hieu ((va cham) or (va chat)) xuc ((va hanh) OR (van hanh)) ve cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sach thieu lang xa hoi. hieu ((va cham) OR (va chat)) xuc ((va hanh) OR (van hanh)) ve cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc sach thieu lang xa hoi. hieu ((va cham) or (va chat)) xuc ((va hanh) OR (van hanh)) ve cua tu".
• Adding a wildcard symbol may retrieve word variants: doc sach thieu lang xa hoi. hieu ((va cham) or (va chat)) xuc ((va hanh) OR (van hanh)) ve cua tu*.