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