Perhaps you should try some spelling variations:
hoc thiet » hoc thuyet, hoc hien, toc thieu
hoc thieu » toc thieu, hoc hien
manh tung » manh hung, thanh tung
cua thong » cua thuong, cua khong, suat thong
cua tong » cua cong, cua dong, cua nong
cong anh » cong danh, dong anh, hong anh
tuan ban » tuan bang, toan ban, luan 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 thiet) or (hoc thieu)) dang - manh tung ((cua thong) or (cua tong)) cong anh tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc thieu)) dang - manh tung ((cua thong) OR (cua tong)) cong anh tuan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc thieu)) dang - manh tung ((cua thong) or (cua tong)) cong anh tuan ban*.