Perhaps you should try some spelling variations:
phan cong » thanh cong
thoi dai » hoc dai, hoi dap, hoi dan
goc hang » hoc hang, oc hang, ngoc thang
hang hoa » hang khoa, thanh hoa, hang va
te cach » ve cach, te sach, tu cach
ve canh » van canh, ve thanh
va phan » van phan, va phat, va phap
mo goc » mot goc, mo hoc, mo uoc
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cach) or (ve canh)) thoi dai, nghien cuu mo goc hang hoa hoc xa hoi va phan cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cach) OR (ve canh)) thoi dai, nghien cuu mo goc hang hoa hoc xa hoi va phan cong.
• Adding a wildcard symbol may retrieve word variants: ((te cach) or (ve canh)) thoi dai, nghien cuu mo goc hang hoa hoc xa hoi va phan cong*.