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