Perhaps you should try some spelling variations:
khien bang » phien ban, khien dong
nhung cong » dung cong, thong cong, hang cong
hoc khien » hoc hien, hoc nghien, hoc thieu
trang cua » tranh cua, tang cua, trung cua
tang luan » dung luan
san chay » san pham, van chat, san chi
dan chan » dan gian, dan ca, van chat

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 bang - hanh ((trang cua) or (tang luan)) nhung cong ((san chay) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc khien bang - hanh ((trang cua) OR (tang luan)) nhung cong ((san chay) OR (dan chan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc khien bang - hanh ((trang cua) or (tang luan)) nhung cong ((san chay) or (dan chan)) cau*.