Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tat hang ca snippets" » "tat thang ca snippets", "dat hang ca snippets", "mat hang ca snippets", "tat hang va snippets", "tat nang cao snippets", "tat 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: (((("tat 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: (((("tat hang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tat hang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tat hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.