Perhaps you should try some spelling variations:
dieu cua » dieu tra
te sach » toc sach
va hanh » van hanh, va thanh, va danh
de cua » le cua, te cua
loc va » hoc va, luc va
ke cau » ket cau
sach v » sach va, sach y, sach 2
ve cau » va cau, ve cac, le cau
v nang » va nang, vu nang, van nang
x hoi » xa hoi, o hoi, x ho

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 v nang x hoi. hieu ((ve cau) or (ke cau)) loc va hanh ((de cua) OR (dieu cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang x hoi. hieu ((ve cau) OR (ke cau)) loc va hanh ((de cua) OR (dieu cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang x hoi. hieu ((ve cau) or (ke cau)) loc va hanh ((de cua) OR (dieu cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sach v nang x hoi. hieu ((ve cau) or (ke cau)) loc va hanh ((de cua) OR (dieu cua)) te*.