Perhaps you should try some spelling variations:
truong phuong » truong chung, truong trung, dung phuong
khien tinh » thien tinh, khien thich, bien tinh
dung chung » dung ung, dung trung, truong chung
hoc khien » hoc hien, hoc nghien, hoc thieu
hanh tran » hanh trang, thanh tran, hanh tram
tran tuan » tran xuan, tran quang, tran thanh
dung cong » dung trong
ban can » ban dan, ban hang, ban hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc khien tinh - hanh tran tuan ((truong phuong) or (((dung chung) OR (dung cong)))) van ban can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc khien tinh - hanh tran tuan ((truong phuong) OR (((dung chung) OR (dung cong)))) van ban can.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc khien tinh - hanh tran tuan ((truong phuong) or (((dung chung) OR (dung cong)))) van ban can".
• Adding a wildcard symbol may retrieve word variants: hoc khien tinh - hanh tran tuan ((truong phuong) or (((dung chung) OR (dung cong)))) van ban can*.