Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi chat cuu snippets" » "voi nhat cuu snippets", "van chat cuu snippets", "hop chat cuu snippets", "voi chat huu snippets", "voi chat cua snippets", "voi cham cuu 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: (((("voi chat cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi chat cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi chat cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi chat cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.