Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi trao doi snippets" » "phai trai doi snippets", "thi thao doi snippets", "thi tran doi snippets", "phi tao doi snippets", "phi trao khoi snippets", "phi truan doi 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: (((("phi trao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi trao doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi trao doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi trao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.