Perhaps you should try some spelling variations:
sanh thieu » sach thieu, thanh thieu, hanh thiet
thieu nang » thien nang, thieu khang, thieu quang
nang mai » nang ma, nang tai, lang mai
hieu van » hieu va, thien van, lieu va
van khac » van hac, va khac, van khuc
so sanh » do sanh
mai hoi » mai khoi, dai hoi, lai hoi
phuc va » phuc vu, thuc va, chuc va
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, bai cua
lai cua » dai cua, hai cua, lai chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh thieu nang mai hoi. hieu van khac phuc va hanh ((vai cua) or (lai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh thieu nang mai hoi. hieu van khac phuc va hanh ((vai cua) OR (lai cua)) te.
• Adding a wildcard symbol may retrieve word variants: so sanh thieu nang mai hoi. hieu van khac phuc va hanh ((vai cua) or (lai cua)) te*.