Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap va du snippets" » "gia va du snippets", "gap va du snippets", "giai va du snippets", "giap va dau snippets", "giap va su snippets", "giap va tu 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: (((("giap va du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giap va du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap va du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap va du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.