Perhaps you should try some spelling variations:
lang hai » lang chai, lang thai, lang ha
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
hai cua » thai cua, dai cua, hoi cua
nang ma » tang ma, sang ma, nang cao
va lang » va nang, hoa lang
sach ty » sach y, sach tu, sach thu
va lap » va dap
va lam » van lam
cua su » qua su

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 ty ((lang xa) or (nang ma)) hoi. lieu ((va lam) or (va lap)) duc va lang hai cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((lang xa) OR (nang ma)) hoi. lieu ((va lam) OR (va lap)) duc va lang hai cua su.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((lang xa) or (nang ma)) hoi. lieu ((va lam) or (va lap)) duc va lang hai cua su*.