Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pham tu hon snippets" » "pham tu code snippets", "phan tu hon snippets", "pham thi hon snippets", "pham tai hon snippets", "pham tu chon snippets", "pham tuc hon snippets", "pham tu hoc snippets"
"python using java snippets" » "python using data 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: (((("pham tu hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham tu hon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( pham tu hon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham tu hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.