Perhaps you should try some spelling variations:
hanh tang » hanh trang, anh tang, hanh mang
cong tang » cong thang, cong lang, cong vang
hoc lieu » hoc dieu, hoc sieu, ho lieu
hoc tieu » hoc thieu, hoc dieu, hoc sieu
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
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 lieu) or (hoc tieu)) tinh - hanh tang cua dung ((cong tan) or (cong tang)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc lieu) OR (hoc tieu)) tinh - hanh tang cua dung ((cong tan) OR (cong tang)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc lieu) or (hoc tieu)) tinh - hanh tang cua dung ((cong tan) or (cong tang)) toan cau*.