Perhaps you should try some spelling variations:
thanh huong » thanh hung, thanh cong, anh huong
nhanh chong » thanh cong, khanh phong
thieu sach » thien hach, hieu cach, theo sach
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
trinh toan » tinh toan, thanh toan, trinh han
cua nhung » va nhung
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: hoc ((thieu sach) OR (chieu sach)) - ((thanh huong) or (nhanh chong)) cua nhung cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sach) OR (chieu sach)) - ((thanh huong) OR (nhanh chong)) cua nhung cong trinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sach) OR (chieu sach)) - ((thanh huong) or (nhanh chong)) cua nhung cong trinh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sach) OR (chieu sach)) - ((thanh huong) or (nhanh chong)) cua nhung cong trinh toan cau*.