Perhaps you should try some spelling variations:
hoan thanh » hoang thanh, ban thanh, van thanh
danh nhan » doanh nhan, thanh nhan, benh nhan
thu sach » tu sach, thuat sach, thuoc sach
sach dao » lanh dao
ha thanh » va thanh, pham thanh, phan thanh
hoc danh » hoc dan, hoc anh, hoc hanh
nhan dan » phan dau, gian dan, nhan tai
dao tai » dao thai, dao tao, cao tai
cuu mot » cua mot, cuu mo, huu mot
hoc xa » hoc ma
xa hoc » xa hoi, va hoc, xa hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach dao tai, nghien cuu mot ((ha thanh) or (hoan thanh)) hoa hoc xa hoc danh nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach dao tai, nghien cuu mot ((ha thanh) OR (hoan thanh)) hoa hoc xa hoc danh nhan dan.
• Adding a wildcard symbol may retrieve word variants: thu sach dao tai, nghien cuu mot ((ha thanh) or (hoan thanh)) hoa hoc xa hoc danh nhan dan*.