Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
cham loc » cham soc, chon loc, hau loc
dang cay » dang xay, dang ca, dang cac
cay phoi » cap phoi, tay hoi, cay cho
tu sach » su sach, te sach, tu cach
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
y dang » ky dang, 2 dang, _ dang
cham o » cham soc
vi cuu » vi luu, vinh cuu

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 (thu sach)) y dang cay phoi. hieu ve ((cham loc) or (cham o)) va hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) y dang cay phoi. hieu ve ((cham loc) OR (cham o)) va hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) y dang cay phoi. hieu ve ((cham loc) or (cham o)) va hanh vi cuu tre*.