Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao quang do snippets" » "cao quan do snippets", "cai quang do snippets", "dao quang do snippets", "cao quang d snippets", "cao quang de snippets", "cao quang dong 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: (((("cao quang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao quang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao quang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao quang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.