Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong von que snippets" » "dung von que snippets", "dong co que snippets", "dong hoc que snippets", "dong hon que snippets", "dong van que snippets", "dong thon que 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 von que 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 von que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong von que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong von que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.