Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
hanh lai » hanh lam, hanh tai, thanh loi
sach ty » sach tu, sach thu, xach tay
nang xa » nang x, lang xa, nang ma
cac luc » cau luc, coc luc, cac nuoc
su viet » so viet
luc va » duc va, tuc va, loc 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)) nang xa hoi. lieu va cac luc va ((hanh lai) or (thanh lap)) su viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach y)) nang xa hoi. lieu va cac luc va ((hanh lai) OR (thanh lap)) su viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach y)) nang xa hoi. lieu va cac luc va ((hanh lai) or (thanh lap)) su viet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach y)) nang xa hoi. lieu va cac luc va ((hanh lai) or (thanh lap)) su viet*.