Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu dinh o2 snippets" » "vu dinh o2 snippets", "chu manh o2 snippets", "co dinh o2 snippets", "chu dinh o snippets", "chu dinh moi snippets", "chu dinh toi 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: (((("chu dinh 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: (((("chu dinh o2 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu dinh o2 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu dinh o2 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.