Perhaps you should try some spelling variations:
dat tren » dat trong, dua tren
dang xay » dang van, van xay
thanh gi » thanh nghi, thanh gian, thanh hai
va thanh » gia thanh, ban thanh, va tinh
cham xuc » cam xuc, chat xuc, cham soc
sach ky » sac ky, sach y, sach ty
la tren » loai tren, dua tren, dau tren
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
xuc va » duc va, tuc va, luc va

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 ky ((dang xay) or (nang x)) hoi. hieu ve cham xuc va thanh gi ((la tren) OR (dat tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((dang xay) OR (nang x)) hoi. hieu ve cham xuc va thanh gi ((la tren) OR (dat tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((dang xay) or (nang x)) hoi. hieu ve cham xuc va thanh gi ((la tren) OR (dat tren))".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((dang xay) or (nang x)) hoi. hieu ve cham xuc va thanh gi ((la tren) OR (dat tren))*.