Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua thong » cua thuong, cua khong, cua tong
tuong tac » cong tac, tuong lai
luong tai » dung tai, luong va
ho chieu » theo chieu, doi chieu, mot chieu
tinh cua » trinh cua, sinh cua, tinh chat
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)) tinh - hanh tinh cua thong ((tuong tac) or (luong tai)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - hanh tinh cua thong ((tuong tac) OR (luong tai)) toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) tinh - hanh tinh cua thong ((tuong tac) or (luong tai)) toan cau*".