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