Perhaps you should try some spelling variations:
cua quoc » cua nuoc, cua thuoc
thanh ve » hanh ve, thanh va, thanh vien
thanh vi » hanh vi, thanh va, nhanh vi
lang mai » lang dai, lang hai, lang man
cao xuc » cam xuc, cao duc, cao suc
xuc van » duc van, luc van, vuc van
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
y lang » o lang, _ lang, tay lang
va cao » va cac, va co, va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thu hoach)) y lang mai hoi. hieu va cao xuc van ((thanh vi) OR (thanh ve)) cua quoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) y lang mai hoi. hieu va cao xuc van ((thanh vi) OR (thanh ve)) cua quoc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu hoach)) y lang mai hoi. hieu va cao xuc van ((thanh vi) OR (thanh ve)) cua quoc".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) y lang mai hoi. hieu va cao xuc van ((thanh vi) OR (thanh ve)) cua quoc*.