Perhaps you should try some spelling variations:
tham hoc » thai hoc, tham hoa, than hoc
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
va tham » van tham, va cham, va thanh
hieu va » lieu va, hieu qua
lang ha » long ha
lang xa » dang xay, lang van
ve cac » va cac, vien cac
vi cua » vai cua, di cua
te cac » tu cac, te cao, de cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) or (ve cac)) ky ((lang xa) OR (lang ha)) hoi. hieu va tham hoc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky ((lang xa) OR (lang ha)) hoi. hieu va tham hoc va hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) or (ve cac)) ky ((lang xa) OR (lang ha)) hoi. hieu va tham hoc va hanh vi cua tre*".