Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
te sach » toc sach
sach ly » sach y, sach lo, sach ty
nang ro » nang co, nang ho, nang ra
van dau » phan dau
va hanh » van hanh, va thanh, va danh
nang o » nang co, nang ho, nang x
xuc va » duc va, tuc va, luc va

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) OR (nang ro)) hoi. hieu ((van dau) or (van dao)) xuc va hanh dai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly ((nang o) OR (nang ro)) hoi. hieu ((van dau) OR (van dao)) xuc va hanh dai cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly ((nang o) OR (nang ro)) hoi. hieu ((van dau) or (van dao)) xuc va hanh dai cua vat".
• Adding a wildcard symbol may retrieve word variants: te sach ly ((nang o) OR (nang ro)) hoi. hieu ((van dau) or (van dao)) xuc va hanh dai cua vat*.