Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac khoi oc snippets" » "cac thoi oc snippets", "cac khoan oc snippets", "cach thoi oc snippets", "cac khoa hoc snippets", "cac khoi lon snippets", "cac khoi noi 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: (((("cac khoi oc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac khoi oc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac khoi oc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac khoi oc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.