Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai ngan con snippets" » "tai ngan con snippets", "dan ngan con snippets", "doi ngan con snippets", "dai ngan can snippets", "dai ngan gon snippets", "dai nhan 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: (((("dai ngan 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: (((("dai ngan con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai ngan con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai ngan con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.