Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"te danh cu snippets" » "le danh cu snippets", "tac danh cu snippets", "te danh cau snippets", "te danh tu snippets", "te dinh cu 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: (((("te danh 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: (((("te danh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( te danh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("te danh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.