Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam ben cua snippets" » "tam ben cua snippets", "dam len cua snippets", "cam bien cua snippets", "dam benh cua snippets", "dam bien cua snippets", "dam ban cua 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 ben 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 ben cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam ben cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam ben cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.