Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
van thanh » ban thanh, van tuan
va triet » va thiet, va trien, ve triet
sach thu » sach thue, sach thieu, sach tham
thu hanh » thuc hanh, thu thanh, thuy hanh
tuc van » thuc van, truc van, tuc va
tu sach » thu sach, su sach, te sach
hanh xa » hanh va, hanh ma, hanh xu
ve cham » va cham, ve chat, vu cham
va cam » va cham, va cac, va cao
ve cam » ve cac, ve cai, ve cau
lap va » tap 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 thu hanh xa hoi. hieu ((((ve cam) OR (ve cham))) or (va cam)) tuc van thanh lap va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu hanh xa hoi. hieu ((((ve cam) OR (ve cham))) OR (va cam)) tuc van thanh lap va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thu hanh xa hoi. hieu ((((ve cam) OR (ve cham))) or (va cam)) tuc van thanh lap va triet*".