Perhaps you should try some spelling variations:
tieu tinh » trieu tinh, tieu trinh, lieu tinh
hanh manh » hanh mang, lanh manh, hoang manh
bang cong » dang cong, bang song, hang cong
phan cong » thanh cong
manh cua » doanh cua, ban cua
van luan » van quan, van tuan, von luan
luan ban » luan van, luan san, luan han

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu tinh - hanh manh cua ((bang cong) or (phan cong)) van luan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - hanh manh cua ((bang cong) OR (phan cong)) van luan ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - hanh manh cua ((bang cong) or (phan cong)) van luan ban*.