Perhaps you should try some spelling variations:
tong tuong » trong tuong, tuong tuong, tong thuong
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh sinh » hanh tinh, hanh dinh, hinh sinh
tuong dan » huong dan, tung dan, xuong dan
sinh cua » manh cua, dinh cuu, sinh va
cua tong » cua cong, cua dong, cua nong
dan toan » van toan, dan than, manh toan
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 ((hieu nganh) or (((hien hanh) or (dieu hanh)))) - hanh sinh cua tong tuong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu nganh) OR (((hien hanh) OR (dieu hanh)))) - hanh sinh cua tong tuong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu nganh) or (((hien hanh) or (dieu hanh)))) - hanh sinh cua tong tuong dan toan cau*.