Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
van hoi » van hoa, van hoc, van hoe
cua van » cua ban, cua dan, cua can
y lang » o lang, tay lang, yen lang
_ lang » o lang, _ land
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((y lang) OR (_ lang)) van hoi. hieu van nam ((cua van) or (cua vat)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y lang) OR (_ lang)) van hoi. hieu van nam ((cua van) OR (cua vat)) hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y lang) OR (_ lang)) van hoi. hieu van nam ((cua van) or (cua vat)) hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y lang) OR (_ lang)) van hoi. hieu van nam ((cua van) or (cua vat)) hanh vi cua te*.