Perhaps you should try some spelling variations:
lang doi » hang doi, lang dai, lang dong
doi cua » dai cua, hoi cua
va lang » va nang, hoa lang
nam tuc » nam thuc, nam truc, nam tu
thi van » thi lan, thi hanh, thi nang
te sach » toc sach
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, tuc xa

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 nang) OR (ty hang)) ma hoa. ((thien van) or (thi van)) nam tuc va lang doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty hang)) ma hoa. ((thien van) OR (thi van)) nam tuc va lang doi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ty hang)) ma hoa. ((thien van) or (thi van)) nam tuc va lang doi cua tre*".