Perhaps you should try some spelling variations:
trong dang » truong dang, trong dan, trong dong
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
dang than » dang thanh, sang than, dang tran
mang cua » manh cua, dung cua, ban cua
than cao » toan cao, thai cao, than cap
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)) tinh - hanh ((trung cua) or (mang cua)) dung trong dang than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doi chi)) tinh - hanh ((trung cua) OR (mang cua)) dung trong dang than cao.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chi)) tinh - hanh ((trung cua) or (mang cua)) dung trong dang than cao*.