Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung vi con snippets" » "nhung voi con snippets", "chung vi con snippets", "nhung bi con snippets", "nhung vit con snippets", "nhung va con 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: (((("nhung vi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung vi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung vi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung vi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.