Perhaps you should try some spelling variations:
cong thuat » trong thuat, vuong thuat, cong thuc
thuat phan » thuat chan, thuat toan, thuat san
phan dang » phan dau, phan cong, nhan dan
dang dang » dang dung, dung dang, dang bang
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, mot chieu
phan tan » phan van, phan tap, phan lan
tan cap » than cap, tan ca, tan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (toc thieu)) sach - phan dang dang cong thuat phan tan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (toc thieu)) sach - phan dang dang cong thuat phan tan cap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (toc thieu)) sach - phan dang dang cong thuat phan tan cap*.