Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
lang cong » dang cong, bang cong, hang cong
hoc dieu » hoc thieu, hoc hien
trinh va » trinh van, trinh vat, trinh ve
van tuan » van quan, van ban, anh tuan
va lang » va nang, hoa lang
van tan » van ban, van tai, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc dieu hanh - hanh trinh va lang cong ((van tan) or (van tuan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc dieu hanh - hanh trinh va lang cong ((van tan) OR (van tuan)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc dieu hanh - hanh trinh va lang cong ((van tan) or (van tuan)) tap*.