Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
hanh doi » thanh doi, hanh noi, hang doi
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
xuc van » duc van, luc van, vuc van
nam xuc » cam xuc, nam xua, nam thuc
sach ly » sach y, sach ty, sach hay
cua hoi » cua moi
sach lo » sach dao, sach doi, sach hoi
doi va » hoi va, noi va, dai 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 ly) OR (sach lo)) hang ((cua hoi) or (xa hoi)). hieu van nam xuc van hanh doi va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ly) OR (sach lo)) hang ((cua hoi) OR (xa hoi)). hieu van nam xuc van hanh doi va trien*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ly) OR (sach lo)) hang ((cua hoi) or (xa hoi)). hieu van nam xuc van hanh doi va trien*".