Perhaps you should try some spelling variations:
sach tai » sach bai, sach tham, sach dao
hanh tai » thanh tai, hang tai, han tai
hanh lai » hanh lam, thanh lap, thanh loi
su sach » so sach, vu sach
truc va » thuc va, thuc vat, trung va
va cham » va chat, va tham
tai san » tai ngan
su viet » so viet
va cao » va cac, va co, va dao
san xa » san va, dan xa, san ha

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach tai san xa hoi. hieu ((va cao) or (va cham)) truc va ((hanh lai) OR (hanh tai)) su viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tai san xa hoi. hieu ((va cao) OR (va cham)) truc va ((hanh lai) OR (hanh tai)) su viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tai san xa hoi. hieu ((va cao) or (va cham)) truc va ((hanh lai) OR (hanh tai)) su viet".
• Adding a wildcard symbol may retrieve word variants: su sach tai san xa hoi. hieu ((va cao) or (va cham)) truc va ((hanh lai) OR (hanh tai)) su viet*.