Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giam hoc cac snippets" » "giam doc cac snippets", "giam hom cac snippets", "gian hoi cac snippets", "giam hoc cao 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: (((("giam hoc cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giam hoc cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giam hoc cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giam hoc cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.