Perhaps you should try some spelling variations:
thach duc » thach thuc, than duc, thinh duc
van thach » van thanh, van thac, van hach
thanh lap » thanh san, phan lap, thanh van
thanh hai » thanh phan, thanh hoa, thanh san
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
ve triet » va trien, su triet
sach ky » sac ky, sach y, sach ty
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang x hoi. hieu van thach duc va ((thanh lap) or (thanh hai)) ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang x hoi. hieu van thach duc va ((thanh lap) OR (thanh hai)) ve triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang x hoi. hieu van thach duc va ((thanh lap) or (thanh hai)) ve triet*.