Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phat van cuc snippets" » "phat van code snippets", "pham van cuc snippets", "phan van cuc snippets", "phap van cuc snippets", "phat van duc snippets", "phat van luc snippets", "phat van cu 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: (((("phat van cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phat van cuc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phat van cuc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phat van cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.