Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"do van cuu snippets" » "do van code snippets", "do van cau snippets", "do van chu snippets", "do van cu snippets", "dao van cuu snippets", "vo van cuu snippets", "so van cuu 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: (((("do van cuu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do van cuu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( do van cuu snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do van cuu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.