Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam luoc doi snippets" » "lam duoc doi snippets", "lam thuoc doi snippets", "lam truoc doi snippets", "lam cuoc doi snippets", "lam luoc dai snippets", "lam hoc doi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("lam luoc doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam luoc doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam luoc doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam luoc doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.