Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
xang xa » lang xa, mang xa, ang xa
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
van anh » van thanh, tuan anh, van minh
va cam » va cham, va cac, va cao
vi cua » vai cua, di cua
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: ((tu sach) or (thu hoach)) ty xang xa hoi. hieu va cam tuc ((va hanh) or (van anh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) ty xang xa hoi. hieu va cam tuc ((va hanh) OR (van anh)) vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) ty xang xa hoi. hieu va cam tuc ((va hanh) or (van anh)) vi cua te*.