Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoa cham den snippets" » "khoa cham den snippets", "hoa chat den snippets", "hoi cham den snippets", "hoa cham nen snippets", "hoa thai den snippets", "hoa chat deo 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: (((("hoa cham den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoa cham den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoa cham den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoa cham den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.