Perhaps you should try some spelling variations:
thieu lang » hieu lang, thieu khang, thieu quang
toc sach » hoc sach, doc sach, thuoc sach
dieu cua » dieu tra
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
va tham » van tham, va thanh, va thuat
va cham » va chat
lang xa » lang ha, dang xay, lang van
de cua » le cua, te cua

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

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