Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
cong vang » cong lang, cong quang, cong ngang
hoc hieu » hoc thieu, doc hieu, hoc dieu
tranh va » tranh van, trang va, trinh va
toan cao » toan ban
toan tap » toan 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 hieu) or (hoc hien)) manh - hanh tranh va nhung cong vang ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc hien)) manh - hanh tranh va nhung cong vang ((toan cao) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc hien)) manh - hanh tranh va nhung cong vang ((toan cao) or (toan tap))*.