Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong ban doc snippets" » "dong bang doc snippets", "dong san doc snippets", "dong bac doc snippets", "dong ban duoc snippets", "dong ban do snippets", "dong bai doc 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 ban doc 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 ban doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong ban doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong ban doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.