Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
suc xanh » suc manh, suc canh, tuoc xanh
xanh han » xanh hanh, anh han, hanh han
dua tren » dung tren
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cao suc » cao su, cao duc
han tai » hang tai, nhan tai, van tai
ve cao » va cao, ve bao, ve cac
cua te » cua tu

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 ky lang xa hoi. hieu ve cao suc xanh han tai ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky lang xa hoi. hieu ve cao suc xanh han tai ((dua tren) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thu sach ky lang xa hoi. hieu ve cao suc xanh han tai ((dua tren) or (cua te))*.