Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh phap bo snippets" » "dinh phap bo snippets", "ban phap bo snippets", "danh nhan bo snippets", "danh phap boi snippets", "danh phap mo snippets", "danh phan bo 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: (((("danh phap bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh phap bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh phap bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh phap bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.