Perhaps you should try some spelling variations:
nhanh khoa » nhan khoa, nganh khoa, hang khoa
thu mach » thu sach, thuat mach, thu hoach
mach hoc » cach hoc, dich hoc, anh hoc
khoa hoc » hoa hoc
van phan » van phong, van thanh, luan phan
phan van » pham van, thanh van, luan van
hai van » thai van, ha van, hai tan
ma hai » ta hai, va hai, xa hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu mach hoc tap, nghien cuu ((dong luc) OR (nang luc)) nhanh khoa hoc ma hai van phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu mach hoc tap, nghien cuu ((dong luc) OR (nang luc)) nhanh khoa hoc ma hai van phan van".
• Adding a wildcard symbol may retrieve word variants: thu mach hoc tap, nghien cuu ((dong luc) OR (nang luc)) nhanh khoa hoc ma hai van phan van*.