Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"da bieu cua snippets" » "da dieu cua snippets", "da hieu cua snippets", "da giau cua snippets", "dai bieu cua snippets", "da lieu 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: (((("da bieu 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: (((("da bieu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( da bieu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("da bieu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.