Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
va thanh » gia thanh, ban thanh, va tinh
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, mang xa
cac xuc » cam xuc, cac nuoc, chat xuc
nang ma » tang ma, sang ma, nang cao
sach ty » sach tu, sach thu, xach tay
ve cua » le cua, de cua, te cua
xuc va » duc va, tuc va, luc va
cua su » qua su

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

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