Perhaps you should try some spelling variations:
thien van » thi van
tay lang » tai lang, tay tang, tay quang
hang doi » hang di, hang loi, huong doi
duc tren » duoc tren, dua tren, duc tien
tu sach » thu sach, su sach, te sach
ky lang » ky nang, ky tang
ky dang » ky nang, ky danh
nam duc » nam duoc, pham duc, nam thuc
va hang » van hang, va nang, va lang
doi duc » do duc, doi duy, oi duc

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) OR (tay lang))) or (ky dang)) xa hoi. thien van nam duc va hang doi duc tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((((ky lang) OR (tay lang))) OR (ky dang)) xa hoi. thien van nam duc va hang doi duc tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((((ky lang) OR (tay lang))) or (ky dang)) xa hoi. thien van nam duc va hang doi duc tren*".