Perhaps you should try some spelling variations:
thi cong » tai cong
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
ty nang » ky nang, ty xang, ty hang
tu cham » toc cham, thi cham
soc van » hoc van, oc van, sac van
luu tre » luu tru, cuu tre, luy tre
chu tu » cau tu, thu tu, chung tu
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 (((thi cong) or (thien cong)))) xa hoi. chu tu cham soc van hanh vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (((thi cong) OR (thien cong)))) xa hoi. chu tu cham soc van hanh vi luu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) or (((thi cong) or (thien cong)))) xa hoi. chu tu cham soc van hanh vi luu tre*.