Perhaps you should try some spelling variations:
thong qua » thong quan, thong cua, thong tu
nam thong » nam trong, nam thang, nam phong
kinh do » kinh co, trinh do, kinh hoc
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
kinh de » kinh te, kinh ve, sinh de
vu sai » vu hai, vu san, vu dai
sai ky » sac ky
ve nam » he nam, va nam, le nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sai ky lang xa hoi. hieu ve nam thong qua ((kinh de) OR (kinh do)) ((cua chu) or (sua chua))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sai ky lang xa hoi. hieu ve nam thong qua ((kinh de) OR (kinh do)) ((cua chu) OR (sua chua)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sai ky lang xa hoi. hieu ve nam thong qua ((kinh de) OR (kinh do)) ((cua chu) or (sua chua))".
• Adding a wildcard symbol may retrieve word variants: vu sai ky lang xa hoi. hieu ve nam thong qua ((kinh de) OR (kinh do)) ((cua chu) or (sua chua))*.