Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trong hat ca snippets" » "trong hoat ca snippets", "trong phat ca snippets", "trong nhat ca snippets", "trong hat cua snippets", "trong tat ca snippets", "trong hat va 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: (((("trong hat 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: (((("trong hat ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong hat ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong hat ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.