Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chai tinh ca snippets" » "chau tinh ca snippets", "thai tinh ca snippets", "cham tinh ca snippets", "chai tinh cao snippets", "chai tinh cua snippets", "chai tinh va 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: (((("chai tinh ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chai tinh ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chai tinh ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chai tinh ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.