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