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