Perhaps you should try some spelling variations:
thieu lang » hieu lang, thieu khang, thieu quang
ngian dan » nhan dan, nghia dan, gian dac
gian dan » gian lang
dan dung » van dung, tin dung, ap dung
dung dat » dung va, dung tai
dat van » dao van, dat va, dam van
van phi » van chi, van phu, van nhi
phi dau » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu lang - ((gian dan) or (ngian dan)) dan dung dat van phi dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu lang - ((gian dan) OR (ngian dan)) dan dung dat van phi dau.
• Adding a wildcard symbol may retrieve word variants: toc thieu lang - ((gian dan) or (ngian dan)) dan dung dat van phi dau*.