Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
trong dan » trong dang, trong san, trong tan
cua dung » cua dang, cua dong, qua dung
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (doi chi)) xanh - canh tranh cua dung trong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doi chi)) xanh - canh tranh cua dung trong dan chan cau*.