Perhaps you should try some spelling variations:
lang va » lang van, hang va, lang ha
va lang » va nang, hoa lang
cac toc » cac toi, cac nuoc, cac thoi
cac loc » cac lop, cac hoc, cac nuoc
sach ly » sach lo, sach ty, sach hay
cuu tre » cua tre, cau tren, cau treo
hieu ve » hieu va, hieu van
nang o » nang co, nang ho, nang ro
va cuu » va cau, va chu, va huu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((sach ly) or (sach y)) nang o hoi. hieu ve ((cac loc) OR (cac toc)) va lang va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((sach ly) OR (sach y)) nang o hoi. hieu ve ((cac loc) OR (cac toc)) va lang va cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach ly) or (sach y)) nang o hoi. hieu ve ((cac loc) OR (cac toc)) va lang va cuu tre*".