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