Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran duy hop snippets" » "tran duc hop snippets", "tran quy hop snippets", "tran thuy hop snippets", "tran duy khoe 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: (((("tran duy hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran duy hop snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran duy hop snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran duy hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.