Perhaps you should try some spelling variations:
thanh do » thanh pho, thanh hoa, thanh loi
thanh de » hanh de, thanh ve, thanh le
te sach » toc sach
ly nang » ky nang, ly hang, ly vang
van dau » phan dau
sach ly » sach y, sach lo, sach ty
xuc va » duc va, tuc va, luc va
nang o » nang co, nang ho, nang ro
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: te sach ly nang o hoi. hieu ((van dau) or (van dao)) xuc va ((thanh de) OR (thanh do)) cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly nang o hoi. hieu ((van dau) OR (van dao)) xuc va ((thanh de) OR (thanh do)) cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly nang o hoi. hieu ((van dau) or (van dao)) xuc va ((thanh de) OR (thanh do)) cua vat".
• Adding a wildcard symbol may retrieve word variants: te sach ly nang o hoi. hieu ((van dau) or (van dao)) xuc va ((thanh de) OR (thanh do)) cua vat*.