Perhaps you should try some spelling variations:
thien van » thi van
thanh de » hanh de, thanh ve, thanh do
thanh di » thanh doi, thanh do, thanh dinh
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
xuc va » duc va, tuc va, luc va
nang o » nang co, nang ho, nang ro
cua te » cua tu
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: so sach ky nang o hoi. ((lieu va) or (thien van)) cam xuc va ((thanh di) OR (thanh de)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang o hoi. ((lieu va) OR (thien van)) cam xuc va ((thanh di) OR (thanh de)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang o hoi. ((lieu va) or (thien van)) cam xuc va ((thanh di) OR (thanh de)) cua te".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang o hoi. ((lieu va) or (thien van)) cam xuc va ((thanh di) OR (thanh de)) cua te*.