Perhaps you should try some spelling variations:
hanh thuong » khanh thuong, thanh thuong, hang thuong
chieu tinh » trieu tinh, lieu tinh, chau tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
thuc hang » thuc hanh, thu hang, phuc hang
hang cong » dang cong, hang nong, bang cong
bang cau » hang cau, bang cac, nang cao
ban cau » ban can, van cau, ban dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - hanh thuong thuc hang cong trinh ((ban cau) or (bang cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh thuong thuc hang cong trinh ((ban cau) OR (bang cau)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh thuong thuc hang cong trinh ((ban cau) or (bang cau))*.