Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh moc cham snippets" » "anh toc cham snippets", "anh moc chau snippets", "anh hoc chat snippets", "anh hoc cham snippets", "anh doc cham snippets", "anh quoc cham 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 moc cham 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 moc cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh moc cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh moc cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.