Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con trao doi snippets" » "con trai doi snippets", "con trau doi snippets", "tan trao doi snippets", "con tao doi snippets", "con trao khoi snippets", "con 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: (((("con 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: (((("con trao doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con trao doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con trao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.