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