Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
dieu tinh » diep tinh, lieu tinh, dien tinh
cua nhung » va nhung
cuong tap » luong tap, cong tac, cong tan
luong tai » dung tai, luong va
hoc dieu » hoc thieu, hoc hien
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 dieu tinh - ((hanh trang) OR (hanh trinh)) cua nhung ((cuong tap) or (luong tai)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dieu tinh - ((hanh trang) OR (hanh trinh)) cua nhung ((cuong tap) OR (luong tai)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc dieu tinh - ((hanh trang) OR (hanh trinh)) cua nhung ((cuong tap) or (luong tai)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc dieu tinh - ((hanh trang) OR (hanh trinh)) cua nhung ((cuong tap) or (luong tai)) toan cau*.