Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tru chat cua snippets" » "tra chat cua snippets", "tri chat cua snippets", "tru nha cua snippets", "tru nhat cua snippets", "tru chat va snippets", "tru chat huu 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: (((("tru chat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tru chat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tru chat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tru chat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.