Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hoac khong » hoa khong, hoc khong, hay khong
khong cong » thong cong, khong cang, chong cong
hanh tang » anh tang, hanh mang, hanh tung
soc dieu » so dieu, bo dieu, moi dieu
hoc dieu » hoc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: ((soc dieu) or (hoc dieu)) hanh - ((hanh tang) or (hanh trang)) hoac khong cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((soc dieu) OR (hoc dieu)) hanh - ((hanh tang) OR (hanh trang)) hoac khong cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((soc dieu) or (hoc dieu)) hanh - ((hanh tang) or (hanh trang)) hoac khong cong tan toan ban*.