Perhaps you should try some spelling variations:
tham hoc » thai hoc, tham hoa, than hoc
dinh chi » dinh thi, dinh tri, dinh moi
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
va tham » van tham, va cham, va thanh
va hanh » van hanh, va thanh, va danh
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
vi cuu » vi luu, vinh cuu

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 hoi. lieu va tham hoc va hanh ((vi cuu) or (((dinh cuu) OR (dinh chi)))) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky tang xa hoi. lieu va tham hoc va hanh ((vi cuu) OR (((dinh cuu) OR (dinh chi)))) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky tang xa hoi. lieu va tham hoc va hanh ((vi cuu) or (((dinh cuu) OR (dinh chi)))) tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky tang xa hoi. lieu va tham hoc va hanh ((vi cuu) or (((dinh cuu) OR (dinh chi)))) tre*.