Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh tai, hanh van
su sach » so sach, vu sach
ty sang » ty xang, ty hang, duy sang
sang xa » song xa, lang xa, sang ma
hieu ve » hieu va, hieu van
hanh va » hang va, hanh vi
sach ty » sach y, sach tu, sach thu
tuc va » thuc va, truc va, duc va
ve cam » ve cham, ve cac, va cam

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 ty sang xa hoi. hieu ve cam ((tuc va) or (tuc xa)) ((hanh vai) OR (hanh va)) cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty sang xa hoi. hieu ve cam ((tuc va) OR (tuc xa)) ((hanh vai) OR (hanh va)) cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty sang xa hoi. hieu ve cam ((tuc va) or (tuc xa)) ((hanh vai) OR (hanh va)) cua vat".
• Adding a wildcard symbol may retrieve word variants: su sach ty sang xa hoi. hieu ve cam ((tuc va) or (tuc xa)) ((hanh vai) OR (hanh va)) cua vat*.