Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son hoa cong snippets" » "son cua cong snippets", "son va cong snippets", "son hoa co snippets", "so hoa cong snippets", "mon hoa cong snippets", "son ha cong 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: (((("son hoa cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son hoa cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son hoa cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son hoa cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.