Perhaps you should try some spelling variations:
te sach » toc sach
xang xa » lang xa, mang xa, ang xa
va hanh » van hanh, va thanh, va danh
le cua » ly cua
de cua » te cua, dieu cua
ke cau » ket cau
luc va » duc va, tuc va, loc va
y xang » ty xang
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y xang xa hoi. hieu ((ve cac) or (ke cau)) luc va hanh ((de cua) OR (le cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y xang xa hoi. hieu ((ve cac) OR (ke cau)) luc va hanh ((de cua) OR (le cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y xang xa hoi. hieu ((ve cac) or (ke cau)) luc va hanh ((de cua) OR (le cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sach y xang xa hoi. hieu ((ve cac) or (ke cau)) luc va hanh ((de cua) OR (le cua)) te*.