Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham dong do snippets" » "pham dong do snippets", "ha dong do snippets", "lam dong do snippets", "ham dong dao snippets", "ham dong co snippets", "ham dang do 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: (((("ham dong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ham dong do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham dong do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham dong do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.