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