Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
xuc dinh » xac dinh, xuan dinh, luoc dinh
cua tre » cua te, cuu tre, cua triet
ve cham » va cham, ve chat, vu cham
nang xa » nang x, nang ma, mang xa
tai cua » thai cua, tai cuc, tri cua
lang xa » lang ha, dang xay, lang van
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
ve cam » ve cac, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky ((nang xa) OR (lang xa)) hoi. hieu ((ve cam) or (ve cham)) xuc dinh thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky ((nang xa) OR (lang xa)) hoi. hieu ((ve cam) OR (ve cham)) xuc dinh thanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky ((nang xa) OR (lang xa)) hoi. hieu ((ve cam) or (ve cham)) xuc dinh thanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu san ky ((nang xa) OR (lang xa)) hoi. hieu ((ve cam) or (ve cham)) xuc dinh thanh tai cua tre*.