Perhaps you should try some spelling variations:
trang xa » trang va, trang ha, trong xa
cham duc » pham duc, cham soc, pham duy
danh tri » dinh tri, thanh tri, danh thin
tang xa » tang ma, lang xa, tang ha
hieu va » lieu va
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky ((tang xa) or (trang xa)) hoi. ((hieu va) OR (hieu qua)) cham duc va danh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((tang xa) OR (trang xa)) hoi. ((hieu va) OR (hieu qua)) cham duc va danh tri cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky ((tang xa) or (trang xa)) hoi. ((hieu va) OR (hieu qua)) cham duc va danh tri cua tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky ((tang xa) or (trang xa)) hoi. ((hieu va) OR (hieu qua)) cham duc va danh tri cua tre*.