Perhaps you should try some spelling variations:
hoc thien » hoc hien, hoc thieu, hoc tien
hoc thiet » hoc thieu, hoc thuyet, hoc hien
canh manh » lanh manh, canh tranh, cach mang
manh quan » manh tuan, anh quan, minh quang
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
phan cau » phan dau, phan cac, phan tu
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thien) or (hoc thiet)) anh - canh manh quan dung cong tan ((phan cau) or (phan lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thien) OR (hoc thiet)) anh - canh manh quan dung cong tan ((phan cau) OR (phan lap)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thien) or (hoc thiet)) anh - canh manh quan dung cong tan ((phan cau) or (phan lap))*.