Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi hang cho snippets" » "chi chang cho snippets", "thi hang cho snippets", "cho hang cho snippets", "chi sang cho snippets", "chi han cho snippets", "chi tang cho 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: (((("chi hang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi hang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi hang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi hang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.