Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thanh dai » thanh tai, thanh dat, thanh oai
thu hanh » thuc hanh, thu thanh, thuy hanh
cua viet » ca viet, hoa viet, cua dieu
sach thu » sach thue, sach thieu, sach tham
tu sach » thu sach, su sach, te sach
xuc ban » duc ban, cuc ban, quoc ban
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
hanh xa » hanh va, hanh ma, hanh xu
ve cac » va cac, vien cac

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 thu hanh xa hoi. hieu ve cac xuc ban ((thanh dai) or (thanh hai)) ((cua viet) OR (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu hanh xa hoi. hieu ve cac xuc ban ((thanh dai) OR (thanh hai)) ((cua viet) OR (cua vat)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thu hanh xa hoi. hieu ve cac xuc ban ((thanh dai) or (thanh hai)) ((cua viet) OR (cua vat))".
• Adding a wildcard symbol may retrieve word variants: tu sach thu hanh xa hoi. hieu ve cac xuc ban ((thanh dai) or (thanh hai)) ((cua viet) OR (cua vat))*.