Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trong hai cu snippets" » "trong thai cu snippets", "trong tai cu snippets", "trong hoat cu snippets", "trong hai cua snippets", "trong hai chu snippets", "trong hai cuc 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 hai cu 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 hai cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong hai cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong hai cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.