Perhaps you should try some spelling variations:
trinh toan » tinh toan, thanh toan, trinh han
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
ho chieu » theo chieu, doi chieu, mot chieu
tang cua » mang cua, hang cua, tang luan
toan cau » toan cao, toan ban, toan tap

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 (hoc thieu))) or (theo tieu)) sang - hanh tang cua nhung cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (hoc thieu))) OR (theo tieu)) sang - hanh tang cua nhung cong trinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((ho chieu) OR (hoc thieu))) or (theo tieu)) sang - hanh tang cua nhung cong trinh toan cau".
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) OR (hoc thieu))) or (theo tieu)) sang - hanh tang cua nhung cong trinh toan cau*.