Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi hang ke snippets" » "hoi lang ke snippets", "voi hang ke snippets", "hoc hang ke snippets", "hoi thong ke snippets", "hoi hanh kem snippets", "hoi nhung ke 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: (((("hoi hang ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi hang ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi hang ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi hang ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.