Perhaps you should try some spelling variations:
lang thai » lang chai, dang thai, lang hai
thai su » thai xu, tai su, thap su
va lang » va nang, hoa lang
cac thu » cach thuc, cac thoi
su hien » su kien, su tien, thu hien
sach ty » sach tu, sach thu, xach tay
hieu va » lieu va
xang xa » lang xa, mang xa, ang xa
thu va » thuc va, thue va, tu va

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) or (sach y)) xang xa hoi. ((hieu va) OR (hieu qua)) cac thu va lang thai su hien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach y)) xang xa hoi. ((hieu va) OR (hieu qua)) cac thu va lang thai su hien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) or (sach y)) xang xa hoi. ((hieu va) OR (hieu qua)) cac thu va lang thai su hien".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach y)) xang xa hoi. ((hieu va) OR (hieu qua)) cac thu va lang thai su hien*.