Perhaps you should try some spelling variations:
van khang » van khanh, van thanh, van quang
khang di » hang di, khang vi, khang voi
nam duoc » nam thuoc, da duoc, dat duoc
te sach » toc sach
thi van » thi lan, thi hanh, thi nang
nam duc » pham duc, nam thuc, nam buoc
ty hang » ly hang, ty xang, thi hang
ty lang » tay lang, ty xang, tu lang
di cua » dai cua, doi cua, de 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: te sach ((ty lang) OR (ty hang)) xa hoi. thi van ((nam duc) or (nam duoc)) van khang di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty lang) OR (ty hang)) xa hoi. thi van ((nam duc) OR (nam duoc)) van khang di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty lang) OR (ty hang)) xa hoi. thi van ((nam duc) or (nam duoc)) van khang di cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty lang) OR (ty hang)) xa hoi. thi van ((nam duc) or (nam duoc)) van khang di cua te*.