Perhaps you should try some spelling variations:
thieu lang » hieu lang, thieu khang, thieu quang
doc sach » hoc sach, nuoc sach, dac sac
toc sach » hoc sach, thuoc sach, nuoc sach
van hanh » van thanh, ban hanh, van anh
vuc van » duc van, luc van, thuc van
lang xa » lang ha, dang xay, lang van
va tham » van tham, va cham, va thanh
hanh de » hanh ve, hanh kem
va chat » van chat, va phat, cao chat
de cua » le cua, te cua, dieu cua
cua cu » cua chu, cua cau, cua su

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) OR (toc sach)) thieu lang xa hoi. hieu ((va tham) or (va chat)) vuc van hanh de cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc sach) OR (toc sach)) thieu lang xa hoi. hieu ((va tham) OR (va chat)) vuc van hanh de cua cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc sach) OR (toc sach)) thieu lang xa hoi. hieu ((va tham) or (va chat)) vuc van hanh de cua cu".
• Adding a wildcard symbol may retrieve word variants: ((doc sach) OR (toc sach)) thieu lang xa hoi. hieu ((va tham) or (va chat)) vuc van hanh de cua cu*.