Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc tieng o2 snippets" » "hoc tieng o2 snippets", "luc tieng o snippets", "luc tieng noi snippets", "luc tieng _ 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: (((("luc tieng 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: (((("luc tieng o2 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc tieng o2 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc tieng o2 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.