Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham tang cho snippets" » "nham tang cho snippets", "ha tang cho snippets", "dam tang cho snippets", "ham trang cho snippets", "ham sang cho snippets", "ham hang cho 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 tang cho 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 tang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham tang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham tang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.