Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong tri hoc snippets" » "cong ti hoc snippets", "dong tri hoc snippets", "cong tai hoc snippets", "cong triet hoc snippets", "cong tri thuc snippets", "cong thai 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: (((("cong tri 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: (((("cong tri hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong tri hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tri hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.