Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giao viet ho snippets" » "gian viet ho snippets", "giao vien ho snippets", "gia viet ho snippets", "giao viet cho snippets", "giao viet ha snippets", "giao viet o 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: (((("giao viet ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giao viet ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giao viet ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giao viet ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.