Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuon vi hoe snippets" » "chon vi hoe snippets", "cuong vo hoe snippets", "cuong ve hoe snippets", "cuon vi hoc snippets", "cuon vi he 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: (((("cuon vi hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuon vi hoe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon vi hoe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon vi hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.