Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang hanh o2 snippets" » "dang thanh o2 snippets", "ban hanh o2 snippets", "dang van o2 snippets", "dang hang o2 snippets", "dang hanh noi snippets", "dang hanh hoa 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: (((("dang hanh o2 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang hanh o2 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang hanh o2 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang hanh o2 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.