Perhaps you should try some spelling variations:
lang hai » lang chai, lang thai, lang ha
te sach » toc sach
nang xa » lang xa, nang ma, mang xa
hai cua » thai cua, dai cua, hoi cua
va lang » va nang, hoa lang
sach ty » sach y, sach tu, sach thu
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cai
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: te sach ty ((nang xa) OR (nang x)) hoi. hieu ((ve cam) or (va cam)) duc va lang hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (nang x)) hoi. hieu ((ve cam) OR (va cam)) duc va lang hai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang xa) OR (nang x)) hoi. hieu ((ve cam) or (va cam)) duc va lang hai cua te*".