Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau triet so snippets" » "cau trieu so snippets", "su triet so snippets", "cua triet so snippets", "cau triet hoc snippets", "cau triet ly snippets", "cau triet li 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: (((("cau triet so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau triet so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau triet so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau triet so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.