Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua tong, suat thong
cua khong » hua khong, cua phuong, cua thuong
cong vang » cong lang, cong quang, cong ngang
vang toan » van toan, dang toan, quang toan
toan ban » van ban

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 tinh - hanh tranh ((cua thong) or (cua khong)) cong vang toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh tranh ((cua thong) OR (cua khong)) cong vang toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh tranh ((cua thong) or (cua khong)) cong vang toan ban*.