Perhaps you should try some spelling variations:
dong thanh » truong thanh
danh thanh » dinh thanh, dang thanh, nhanh thanh
cau tren » cu tren, dau tren, ca tren
tu sach » thu sach, su sach, te sach
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 va » lieu va, hieu qua
va cham » va chat, va tham
tai cau » tai cac, tai cao

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 ky lang xa hoi. hieu va cham soc ((danh thanh) or (dong thanh)) tai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu va cham soc ((danh thanh) OR (dong thanh)) tai cau tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu va cham soc ((danh thanh) or (dong thanh)) tai cau tren*.