Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nuoc cam » nuoc nam, nuoc cap, nuoc chau
vu sach » vu bach, su sach, vu khach
dan vai » dan va, dan tai, dan vat
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach ty
cam dan » cac dan, ca dan, nam dan
le cau » ke cau, le mau
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang xa hoi. hieu ((le cap) OR (le cau)) nuoc cam dan vai ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang xa hoi. hieu ((le cap) OR (le cau)) nuoc cam dan vai ((cua triet) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang xa hoi. hieu ((le cap) OR (le cau)) nuoc cam dan vai ((cua triet) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang xa hoi. hieu ((le cap) OR (le cau)) nuoc cam dan vai ((cua triet) or (cua te))*.