Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung con du snippets" » "nhung cong du snippets", "nhung don du snippets", "nhung mon du snippets", "nhung con tu snippets", "nhung ton du snippets", "nhung con cu 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 con du 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 con du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung con du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung con du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.