Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kien tri hoc snippets" » "kien truc hoc snippets", "dieu tri hoc snippets", "kiem tra hoc snippets", "kien triet hoc snippets", "kien tri thuc snippets", "kien thai hoc 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: (((("kien tri hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kien tri hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kien tri hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kien tri hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.