Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
va triet » va trien, ve triet, cua triet
so sach » so sanh, bo sach, co sach
van hoi » van hoa, van hoc, van hoe
qua bao » qua ban, qua bau, qua lao
thuc va » thuc dan, thuc day
hang vi » hang va, hanh vi, hang di
y lang » o lang, _ lang, tay lang
thiet » thieu

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 y lang van hoi. hieu qua bao ((thuc va) OR (thuc vat)) hang vi ((va triet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y lang van hoi. hieu qua bao ((thuc va) OR (thuc vat)) hang vi ((va triet) OR (va thiet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y lang van hoi. hieu qua bao ((thuc va) OR (thuc vat)) hang vi ((va triet) or (va thiet))*".