Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bac diem cua snippets" » "dac diem cua snippets", "cac diem cua snippets", "bach diep cua snippets", "bac dieu cua snippets", "bac diem ca snippets", "bac dien cua 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: (((("bac diem cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bac diem cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bac diem cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bac diem cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.