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