Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoat voi can snippets" » "hoat doi can snippets", "hoa vo can snippets", "hop voi can snippets", "hoat voi cac snippets", "hoat voi cong snippets", "hoat voi hang 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: (((("hoat voi 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: (((("hoat voi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoat voi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoat voi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.