Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kinh te cac snippets" » "kinh tu cac snippets", "kinh ve cac snippets", "kinh te cao snippets", "dinh te cac snippets", "minh te cac 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 te 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: (((("kinh te cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kinh te cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kinh te cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.