Perhaps you should try some spelling variations:
te sach » toc sach
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
cam duc » cam xuc, cao duc, pham duc
van cam » van nam, van lam, van cau
thi van » thi lan, thi hanh, thi nang
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
luu tre » luu tru, cuu tre, luy tre
vi luu » vi lua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ty nang) or (ty hang)) xa hoi. thi van cam duc ((va danh) OR (va hanh)) vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty hang)) xa hoi. thi van cam duc ((va danh) OR (va hanh)) vi luu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) or (ty hang)) xa hoi. thi van cam duc ((va danh) OR (va hanh)) vi luu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) or (ty hang)) xa hoi. thi van cam duc ((va danh) OR (va hanh)) vi luu tre*.