Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
lam xuc » cam xuc, lam duoc
xuc van » duc van, luc van, vuc van
doi cua » dai cua, hoi cua
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
va lam » van lam, va lap
di cua » dai cua, de cua, do cua
x hoi » o hoi, x ho, 5 hoi

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) OR (xa hoi)). lieu va lam xuc van hanh ((di cua) or (doi cua)) vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang ((x hoi) OR (xa hoi)). lieu va lam xuc van hanh ((di cua) OR (doi cua)) vat*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang ((x hoi) OR (xa hoi)). lieu va lam xuc van hanh ((di cua) or (doi cua)) vat*".