Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cham luc » cham soc, cham cuu, chat lua
nhan luc » nang luc
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
ca tren » cau tren, cu tren, la tren
y lang » o lang, _ lang, tay lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y lang xa hoi. lieu va ((cham luc) or (nhan luc)) va hanh va ((ca tren) or (dau tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y lang xa hoi. lieu va ((cham luc) OR (nhan luc)) va hanh va ((ca tren) OR (dau tien)).
• Adding a wildcard symbol may retrieve word variants: thuoc sach y lang xa hoi. lieu va ((cham luc) or (nhan luc)) va hanh va ((ca tren) or (dau tien))*.