Perhaps you should try some spelling variations:
te sach » toc sach
lang va » lang van, hang va, lang ha
va lang » va nang, hoa lang
duoc va » nuoc va, duc va, duoc ma
cua tre » cua te, cuu tre, cua triet
ty lang » tay lang, ty hang, tu lang
va lam » van lam
va lap » va dap
va cua » va chua, via cua, ca cua

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 ((ty lang) or (ty xang)) xa hoi. hieu ((va lam) OR (va lap)) duoc va lang va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty lang) OR (ty xang)) xa hoi. hieu ((va lam) OR (va lap)) duoc va lang va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty lang) or (ty xang)) xa hoi. hieu ((va lam) OR (va lap)) duoc va lang va cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty lang) or (ty xang)) xa hoi. hieu ((va lam) OR (va lap)) duoc va lang va cua tre*.