Perhaps you should try some spelling variations:
xa thanh » va thanh, ha thanh, ta thanh
su sach » so sach, vu sach
hai cua » thai cua, hoi cua, lai cua
hieu ve » hieu va, hieu van
ty hang » ly hang, ty xang, thi hang
ty lang » tay lang, ty xang, tu lang
ve cac » va cac, vien cac
cac tu » cac thu, cach tu, cac du
tu xa » tu xay, tu va, te xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((ty lang) or (ty hang)) xa hoi. hieu ve cac tu xa thanh ((hai cua) or (dai cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty lang) OR (ty hang)) xa hoi. hieu ve cac tu xa thanh ((hai cua) OR (dai cua)) tu.
• Adding a wildcard symbol may retrieve word variants: su sach ((ty lang) or (ty hang)) xa hoi. hieu ve cac tu xa thanh ((hai cua) or (dai cua)) tu*.