Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham mat cheo snippets" » "ham hat cheo snippets", "ham ban cheo snippets", "ham dat cho snippets", "pham mat cheo snippets", "tham mat cheo snippets", "nham mat cheo 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 mat cheo 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 mat cheo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham mat cheo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham mat cheo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.