Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
va thanh » gia thanh, ban thanh, va tinh
cham duc » cham soc, pham duy, phan duc
tu sach » thu sach, su sach, te sach
va chua » vua chua, ca chua, va chu
hieu vu » hieu va, hieu ve, hieu su
nang xa » lang xa, nang ma, mang xa
sach ty » sach y, sach tu, sach thu
chua xe » chua xi, chuan he, chuan ve

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 ty ((nang xa) or (nang x)) hoi. hieu vu ((cham duc) OR (pham duc)) va thanh va chua xe~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang xa) OR (nang x)) hoi. hieu vu ((cham duc) OR (pham duc)) va thanh va chua xe.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((nang xa) or (nang x)) hoi. hieu vu ((cham duc) OR (pham duc)) va thanh va chua xe".
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang xa) or (nang x)) hoi. hieu vu ((cham duc) OR (pham duc)) va thanh va chua xe*.