Perhaps you should try some spelling variations:
thanh de » hanh de, thanh ve, thanh do
thanh di » thanh doi, thanh do, thanh dinh
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo
nang xa » nang x, lang xa, nang ma
lang ha » long ha
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach thieu ((nang xa) or (lang ha)) hoi. lieu va cam xuc va ((thanh di) OR (thanh de)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thieu ((nang xa) OR (lang ha)) hoi. lieu va cam xuc va ((thanh di) OR (thanh de)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thieu ((nang xa) or (lang ha)) hoi. lieu va cam xuc va ((thanh di) OR (thanh de)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: su sach thieu ((nang xa) or (lang ha)) hoi. lieu va cam xuc va ((thanh di) OR (thanh de)) cuu tre*.