Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
danh sai » dung sai, danh bat, danh dau
van chat » cao chat
hoc sach » hoc sinh, hoc cac, hoc anh
van tham » van tuan, van tai, van thu
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
sai cua » dai cua, hai cua, lai cua
sach v » sach va, sach y, sach 2
nang o » nang co, nang ho, nang ro
v nang » va nang, vu nang, van nang
cua te » cua tu
o hoc » co hoc, mo hoc, so hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach v nang o hoc. thien ((((van tham) OR (van thanh))) or (van chat)) thuc va danh sai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach v nang o hoc. thien ((((van tham) OR (van thanh))) OR (van chat)) thuc va danh sai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach v nang o hoc. thien ((((van tham) OR (van thanh))) or (van chat)) thuc va danh sai cua te".
• Adding a wildcard symbol may retrieve word variants: hoc sach v nang o hoc. thien ((((van tham) OR (van thanh))) or (van chat)) thuc va danh sai cua te*.