Perhaps you should try some spelling variations:
phan thanh » pham thanh, ban thanh, van thanh
hoc thieu » toc thieu, hoc hien
hoc hieu » hoc hien, doc hieu, hoc dieu
ha thanh » va thanh, pham thanh, thi thanh
long dan » long doan, cong dan, nong dan
dan chan » dan gian, dan ca, van chat
chan cap » khan cap, than cap, cao cap

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 thieu)) manh - canh tranh ((ha thanh) OR (phan thanh)) long dan chan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc thieu)) manh - canh tranh ((ha thanh) OR (phan thanh)) long dan chan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hieu) or (hoc thieu)) manh - canh tranh ((ha thanh) OR (phan thanh)) long dan chan cap".
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc thieu)) manh - canh tranh ((ha thanh) OR (phan thanh)) long dan chan cap*.