Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van canh doi snippets" » "van canh code snippets", "van anh doi snippets", "van hanh doi snippets", "van manh doi snippets", "van thanh doi snippets", "van tinh doi snippets", "van cau doi 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: (((("van canh doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van canh doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van canh doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van canh doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.