Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach tay » xach tay, sach hay, sach nay
tay lang » tai lang, tay tang, tay quang
cham luc » nhan luc, cham cuu, chat lua
cau tren » cu tren, dau tren, ca tren
dau tien » van tien
lang xa » lang ha, dang xay, lang van
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi

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 tay lang xa hoi. lieu va ((cham luc) OR (cham soc)) va hanh va ((cau tren) or (dau tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tay lang xa hoi. lieu va ((cham luc) OR (cham soc)) va hanh va ((cau tren) OR (dau tien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach tay lang xa hoi. lieu va ((cham luc) OR (cham soc)) va hanh va ((cau tren) or (dau tien))".
• Adding a wildcard symbol may retrieve word variants: thu sach tay lang xa hoi. lieu va ((cham luc) OR (cham soc)) va hanh va ((cau tren) or (dau tien))*.