Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh chi cuc snippets" » "danh cho cuc snippets", "dinh chi cuc snippets", "banh chi cuc snippets", "danh thi 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: (((("danh chi cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh chi cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh chi cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh chi cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.