Perhaps you should try some spelling variations:
cong thuat » trong thuat, vuong thuat, cong thuc
thuat bang » thuat ban, thuat mang, thuat nang
doi chieu » doc hieu, doi chi, mot chieu
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, hoc thieu, mot chieu
cong ban » cong bang, cong san, cong tan
hanh cac » hang cac, hanh cat, nhanh cay
than cap » khan cap, thanh lap, thanh cac

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 (doi chieu)) tinh - thanh cong thuat bang cong ban ((hanh cac) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) tinh - thanh cong thuat bang cong ban ((hanh cac) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) tinh - thanh cong thuat bang cong ban ((hanh cac) or (than cap))*.