Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang cong vo snippets" » "dang cong vo snippets", "hang nong vo snippets", "thanh cong vo snippets", "hang cuong vo snippets", "hang cong va snippets", "hang cong so 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: (((("hang cong vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang cong vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang cong vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang cong vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.