Perhaps you should try some spelling variations:
te sach » toc sach
nang ro » nang co, nang ho, nang ra
van dau » phan dau
hanh di » hanh vi, hanh de, danh di
hang di » hang doi, hang vi, hang dien
y nang » ky nang, ly nang, v nang
ro hoi » co hoi, o hoi, mo hoi
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 y nang ro hoi. hieu ((van dau) or (van dao)) xuc va ((hanh di) or (hang di)) cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ro hoi. hieu ((van dau) OR (van dao)) xuc va ((hanh di) OR (hang di)) cua vat.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ro hoi. hieu ((van dau) or (van dao)) xuc va ((hanh di) or (hang di)) cua vat*.