Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"do danh vong snippets" » "do dinh vuong snippets", "do doanh tong snippets", "do dang cong snippets", "do dinh vong snippets", "do sanh vong snippets", "dia danh vong 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: (((("do danh vong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do danh vong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( do danh vong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do danh vong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.