Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh lap » thanh san, phan lap, thanh hai
cua viet » ca viet, hoa viet, cua vat
va thanh » gia thanh, ban thanh, va tinh
van hai » van ha, van chat, van hanh
lap cua » lai cua, tap cua, lam cua
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
van hac » van hoc, van ha, van chat
tuc va » thuc va, truc va, tuc xa

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) or (thuoc sach)) ty nang xa hoi. thi ((van hac) OR (van hai)) tuc va thanh lap cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuoc sach)) ty nang xa hoi. thi ((van hac) OR (van hai)) tuc va thanh lap cua viet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thuoc sach)) ty nang xa hoi. thi ((van hac) OR (van hai)) tuc va thanh lap cua viet*".