Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
cham tuc » nham thuc, tham thuc, cham soc
hanh ve » hanh vi, hanh va, hanh kem
va hanh » van hanh, va thanh, va danh
su sach » so sach
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, vu khach
ve cua » le cua, de cua, te cua
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: ((su sach) OR (vu sach)) ky nang xa hoi. lieu va ((cham tuc) or (pham thuc)) va hanh ve cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang xa hoi. lieu va ((cham tuc) OR (pham thuc)) va hanh ve cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ky nang xa hoi. lieu va ((cham tuc) or (pham thuc)) va hanh ve cua te".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ky nang xa hoi. lieu va ((cham tuc) or (pham thuc)) va hanh ve cua te*.