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