Perhaps you should try some spelling variations:
thanh tap » thanh lap, thanh tai, thanh tay
hieu va » lieu va, hieu qua
ky tang » ky nang, ky dang, kho tang
tap cua » tap quan, tiep cua
mai hoi » mai khoi, dai hoi, lai hoi
thuc va » thuc vat, thuc dan, thuc day
tu sac » tu sach, tu cac, tu san
va cam » va cham, va cac, va cao
sac ky » cac ky, sai ky
ma hoi » xa hoi, ma hoa, me hoi
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky tang ((ma hoi) OR (mai hoi)). hieu va cam ((duc va) or (thuc va)) thanh tap cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky tang ((ma hoi) OR (mai hoi)). hieu va cam ((duc va) OR (thuc va)) thanh tap cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky tang ((ma hoi) OR (mai hoi)). hieu va cam ((duc va) or (thuc va)) thanh tap cua te*".