Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kinh dao cua snippets" » "minh dao cua snippets", "dinh dao cua snippets", "kinh do cua snippets", "kinh dai cua snippets", "kinh day cua snippets", "kinh dan 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: (((("kinh dao 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: (((("kinh dao cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kinh dao cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kinh dao cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.