Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao luat hon snippets" » "cap luat hon snippets", "cac luat hon snippets", "cao chat hon snippets", "cao luat hoi snippets", "cao luat hop snippets", "cao luat huong 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: (((("cao luat hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao luat hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao luat hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao luat hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.