Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap moi cho snippets" » "gia moi cho snippets", "giap voi cho snippets", "gian mot cho snippets", "giap moi co snippets", "giap hoi cho snippets", "giap mo cho 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 moi cho 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 moi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap moi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap moi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.