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