Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tom hang ca snippets" » "nhom hang ca snippets", "tot thang ca snippets", "thi hang ca snippets", "tom hang va snippets", "tom nang cao snippets", "tom hang tai 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: (((("tom hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tom hang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tom hang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tom hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.