Perhaps you should try some spelling variations:
ve triet » va trien, su triet
thu nang » thi nang, thu hang, thu bang
hoa lang » hoa dan, hoa van
va lang » va nang
chai ve » chai va
tu sach » thu sach, te sach, tu cach
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
va nam » van nam, ha nam, va nay

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 (su sach)) thu nang xa hoi. hieu va nam thu ((va lang) or (hoa lang)) chai ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) thu nang xa hoi. hieu va nam thu ((va lang) OR (hoa lang)) chai ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) thu nang xa hoi. hieu va nam thu ((va lang) or (hoa lang)) chai ve triet*".