Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh lap » thanh san, phan lap, thanh van
thanh hai » thanh phan, thanh hoa, thanh san
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
van cau » van dau, van hau, van chat
cau dac » cuu dac, cac dac, cau danh
dac va » duc va, day va, dat va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ty lang xa hoi. hieu van cau dac va ((thanh lap) or (thanh hai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty lang xa hoi. hieu van cau dac va ((thanh lap) OR (thanh hai)) cua triet.
• Adding a wildcard symbol may retrieve word variants: thuat sach ty lang xa hoi. hieu van cau dac va ((thanh lap) or (thanh hai)) cua triet*.