Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh kien con snippets" » "danh kien con snippets", "hanh kien con snippets", "anh kiem con snippets", "anh kien co snippets", "anh kien cuong snippets", "anh tien cong 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: (((("anh kien con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh kien con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh kien con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh kien con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.