Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham rong lon snippets" » "pham trong lon snippets", "pham cong lon snippets", "nam trong lon snippets", "ham cong lon snippets", "ham vong lon snippets", "ham trong long 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: (((("python using java snippets") or ("ham rong lon snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("ham rong lon snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( ham rong lon snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("ham rong lon snippets"))) or ("locating bug code snippets"))*.