Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham vu cua snippets" » "cham va cua snippets", "pham vu cua snippets", "cham cuu cua snippets", "cham hu cua snippets", "cham tu 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: (((("cham vu 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: (((("cham vu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham vu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham vu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.