Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tri van cua snippets" » "tri van code snippets", "thi van cua snippets", "tri va cua snippets", "trinh van cua snippets", "tri vang cua snippets", "tri ban cua snippets", "tri dan cua 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: (((("tri van cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri van cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tri van cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri van cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.